@TechReport{	  Alhazov.ea:P-systems,
  author       = {Artiom Alhazov and Sergey Verlan},
  title        = {Minimization strategies for rule complexity of universal
                  antiport {P}~systems},
  institution  = {Turku Centre for Computer Science},
  year         = {2008},
  type         = {Technical Report},
  number       = {862},
}

@TechReport{	  Murphy.ea:NL-using-membrane-systems-without-charges.dissolution,
  author       = {Niall Murphy and Damien Woods},
  title        = {A characterisation of {NL} using membrane systems without
                  charges and dissolution},
  institution  = {Department of Computer Science, National University of
                  Ireland, Maynooth},
  year         = {2008},
  type         = {Technical Report},
  number       = {2008-01},
}

@techreport{Cavaliere:Modelling_Cellular_Processes:TR7/2006,
  author       = {Matteo Cavaliere and S. Sedwards},
  title        = {Modelling Cellular Processes using Membrane Systems with Peripheral and
                  Integral Proteins},
  institution  = {Microsoft Research - University of Trento, Centre for Computational and
                  Systems Biology},
  address      = {Trento, Italy},
  number       = {07/2006},
  note         = {Technical Report 7/2006, Microsoft Research - University of Trento, Centre
                  for Computational and Systems Biology},
}

@techreport{Paun:CDMTCS_TR_101:Multiset_Proces:U,
	author={Gheorghe P{\u a}un and Gabriel Thierrin},
	title={Multiset Processing by Means of Systems of Finite State Transducers},
	institution={University of Auckland},
	number={101},
	note={CDMTCS Report (www.cs.auckland.ac.nz/CDMTCS)}
}

@techreport{Paun:TUCS_208_98:Computing_with:98,
	author={Gheorghe P{\u a}un},
	title={Computing with Membranes},
	institution={Turku Center for Computer Science-TUCS},
	year={1998},
	number={208},
	note={(www.tucs.fi)}
}

@techreport{Paun:TUCS_218_98:Membrane_Comput:98,
	author={Gheorghe P{\u a}un and Grzegorz Rozenberg and Arto Salomaa},
	title={Membrane Computing with External Output},
	institution={Turku Center for Computer Science-TUCS},
	year={1998},
	number={218},
	note={Report No 218 (www.tucs.fi)}
}

@techreport{Paun:UWO_TR_539_00:On_Synchronizat:99,
	author={Gheorghe P{\u a}un and Sheng Yu},
	title={On Synchronization in {P} systems},
	institution={University of Western Ontario},
	year={1999},
	address={Ontario, Canada},
	number={539},
	note={Report TR 539 (www.csd.uwo.ca/faculty/syu/TR539.html)}
}

@techreport{Calude:CDMTCS_117:Glimpse:2000,
	author={Cristian S. Calude and Gheorghe P{\u a}un and Monica Tatar{\^a}m},
	title={A Glimpse into Natural Computing},
	institution={CDMTCS University of Auckland},
	year={2000},
	number={117}
}

@techreport{Atanas:RiVU_TR_14_00:P_Systems_and_C:00,
	author={Adrian Atanasiu and Carlos Mart{\'i}n-Vide},
	title={{P} systems and Context-Free Languages},
	institution={Rovira i Virgili University},
	year={2000},
	address={Tarragona, Spain},
	number={14/00},
	note={Technical Report 14/00 of Research Group on Mathematical Linguistics},
	pages={37--51}
}

@techreport{Paun:CDMTCS_TR_119_00:Computing_with:00,
	author={Gheorghe P{\u a}un},
	title={Computing with Membranes ({P} systems): Twenty Six Research Topics},
	institution={University of Auckland},
	year={2000},
	number={119},
	note={CDMTCS TR 119 (www.cs.auckland.ac.nz/ CDMTCS)}
}

@techreport{Castel:CDMTCS_TR_123_00:P_Systems_with:00,
	author={Juan Castellanos and Gheorghe P{\u a}un and Alfonso Rodr{\'i}guez-Pat{\'o}n},
	title={{P} systems with Worm-Objects},
	institution={University of Auckland},
	year={2000},
	number={123},
	note={www.cs.auckland.ac.nz/CDMTCS}
}

@techreport{Kudlek:CDMTCS_TR_140_00:Toward_FMT_(For:00,
	author={Manfred Kudlek and Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un},
	title={Toward {FMT} ({F}ormal {M}acroset {T}heory)},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={149--158}
}

@techreport{Malita:CDMTCS_TR_140_00:Membrane_Comput:00,
	author={Mihaela Malita},
	title={Membrane Computing in {P}rolog},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={159--175}
}

@techreport{Frisco:CDMTCS_TR_140_00:Membrane_Comput:00,
	author={Pierluigi Frisco},
	title={Membrane Computing Based on Splicing: Improvements},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={100--111}
}

@techreport{Rama:CDMTCS_TR_140_00:Computing_with:00,
	author={Raghavan Rama},
	title={Computing with {P} systems},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={218--235}
}

@techreport{NKri:CDMTCS_TR_140_00:Computing_with:00,
	author={Shankara Narayanan Krishna},
	title={Computing with Simple {P} systems},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={124--137}
}

@techreport{Manca:CDMTCS_TR_140_00:Monoidal_System:00,
	author={Vincenzo Manca},
	title={Monoidal Systems and Membrane Systems},
	institution={University of Auckland},
	year={2000},
	number={140},
	note={CDMTCS TR 140},
	pages={176--190}
}

@techreport{Suzuki:CDMTCS_TR_140_00:Artificial_Life:00,
	author={Yasuhiro Suzuki and Hiroshi Tanaka},
	title={Artificial Life and {P} systems},
	institution={University of Auckland},
	year={2000},
	number={140},
	pages={265--285}
}

@techreport{Atanas:RiVU_TR_17_01:Recursive_Calcu:01,
	author={Adrian Atanasiu and Carlos Mart{\'i}n-Vide},
	title={Recursive Calculus with Membranes},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={31--44}
}

@techreport{Paun:RiVU_TR_17_01:P_Systems_with:01,
	author={Andrei P{\u a}un},
	title={{P} systems with String-Objects: Universality Results},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={229--242}
}

@techreport{Martin:RiVU_TR_21_01:Elements_of_For:01,
	author={Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un},
	title={Elements of Formal Language Theory for Membrane Computing},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={21/01},
	note={Technical Report 21/01 of Research Group on Mathematical Linguistics}
}

@techreport{Ferret:RiVU_TR_17_01:On_Three_Varian:01,
	author={Claudio Ferretti and Giancarlo Mauri and Gheorghe P{\u a}un and Claudio
		Zandron},
	title={On Three Variants of {P} systems with String-Objects},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={63--76}
}

@techreport{Nico:RiVU_TR_17_01:A_C_Library_f:01,
	author={Dan V. {Nicolau Jr.} and Gerardin Solana and Florin Fulga and Dan V. {Nicolau
		Sr.}},
	title={A "{C}" Library for Implementing {P} systems on the Electronic Computer
		(Abstract)},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={221--222}
}

@techreport{Arroyo:RiVU_TR_17_01:A_Recursive_Alg:01,
	author={Fernando Arroyo and Angel V. Baranda and Juan Castellanos and Carmen Luengo
		and Luis F. Mingo},
	title={A Recursive Algorithm for Describing Evolution in Transition {P} systems},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={19--30}
}

@techreport{Cioban:RiVU_TR_17_01:Gene_Expression:01,
	author={Gabriel Ciobanu and Bogdan Tanasa},
	title={Gene Expression by Software Mechanisms.},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={51--62}
}

@techreport{Cioban:RiVU_TR_17_01:Membrane_Softwa:01,
	author={Gabriel Ciobanu and Dorin Paraschiv},
	title={Membrane Software. A {P} system Simulator},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={45--50}
}

@techreport{Paun:RiVU_TR_17_01:Further_Researc:01,
	author={Gheorghe P{\u a}un},
	title={Further Research Topics About {P} systems},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={243--250}
}

@techreport{LGia:RiVU_TR_17_01:MGS:_Implementi:01,
	author={Jean Louis Giavitto and Olivier Michel},
	title={{MGS}: Implementing a Unified View on Four Biologically Inspired Computing
		Models},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={107--122}
}

@techreport{Aguado:RiVU_TR_17_01:P_Systems_with:01,
  author       = {Joaqu{\'i}n Aguado and Tudor Balanescu and Tony Cowling and Marian Gheorghe
                  and Florentin Ipate},
  title        = {{P} systems with Replicated Rewriting and Stream {X-Machines}},
  institution  = {Rovira i Virgili University},
  year         = {2001},
  address      = {Tarragona, Spain},
  number       = {17/01},
  note         = {Technical Report 17/01 of Research Group on Mathematical Linguistics},
  pages        = {7--18},
}

@techreport{Mate:RiVU_TR_17_01:On_the_Power_of:01,
	author={Jos{\'e} L. Mat{\'e} and Alfonso Rodr{\'i}guez-Pat{\'o}n and Andr{\'e}s Silva},
	title={On the Power of {P} systems with {DNA-Worms}},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={209--220}
}

@techreport{Subramanian:RiVU_TR_17_01:self_crosover:01,
	author={K.G. Subramanian and D.G. Thomas and M.H. Begum and P.H. Chandra},
	title={A note on self crossover and splicing {P} systems},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={259--266}
}

@techreport{Frisco:RiVU_TR_17_01:A_Direct_Constr:01,
	author={Pierluigi Frisco and Hendrik Jan Hoogeboom and Paul Sant},
	title={A Direct Construction of a Universal {P} system},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={89--106}
}

@techreport{Freund:RiVU_TR_17_01:Variants_of_GP:01,
	author={Rudolf Freund and Marion Oswald},
	title={Variants of {GP Systems}},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={77--88.}
}

@techreport{Kris:RiVU_TR_17_01:On_the_Power_of:01,
	author={Shankara Narayanan Krishna and K. Lakshmanan and Raghavan Rama},
	title={On the Power of {P} systems with Contextual Rules},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={143--156}
}

@techreport{Marcus:RiVU_TR_17_01:Membranes_versu:01,
	author={Solomon Marcus},
	title={Membranes versus {DNA}},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={193--198}
}

@techreport{Ji:RiVU_TR_17_01:The_Bhopalator:01,
	author={Sungchul Ji},
	title={The {Bhopalator}: An Information/Energy Dual Model of the Living Cell},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={123--142}
}

@techreport{Nish:RiVU_TR_17_01:Simulations_of:01,
	author={Taishin Yasunobu Nishida},
	title={Simulations of Photosynthesis by a {K-Subset} Transforming System with Membranes},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={223--228}
}

@techreport{Manca:RiVU_TR_17_01:Membrane_Algori:01,
	author={Vincenzo Manca},
	title={Membrane Algorithms for Propositional Satisfiability},
	institution={Rovira i Virgili University},
	year={2001},
	address={Tarragona, Spain},
	number={17/01},
	note={Technical Report 17/01 of Research Group on Mathematical Linguistics},
	pages={181--192}
}

@techreport{Martin:TUCS_421_01:Tissue_P_System:01,
	author={Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un and J. Pazos and Alfonso Rodr{\'i}guez-Pat{\'o}n},
	title={Tissue {P} systems},
	institution={Turku Center for Computer Science-TUCS},
	year={2001},
	month={September},
	number={421},
	note={TUCS Technical Report 421}
}

@techreport{Obtulo:RiVU_TR_26_03:Mathematical_Mo:03,
	author={Adam Obtulowicz},
	title={Mathematical Models of Uncertainty with a Regard to Membrane Systems},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Cordon:RiVU_TR_26_03:A_Prolog_Simula:03,
	author={Andr{\'e}s Cord{\'o}n-Franco and Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez
		and Fernando Sancho-Caparrini},
	title={A {Prolog} Simulator for Deterministic {P} systems with Active Membranes.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{PerezJ:RiVU_TR_26_03:Computing_a_Par:03,
	author={Antonio P{\'e}rez-Jim{\'e}nez and Mario J. P{\'e}rez-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Computing a Partial Mapping by a {P} system: Design and Verification},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{PerezJ:RiVU_TR_26_03:Formal_Verifica:03,
	author={Antonio P{\'e}rez-Jim{\'e}nez and Mario J. P{\'e}rez-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Formal Verification of a Transition {P} system Generating the Set $2^n+n^2+n
		| n > 1$},
	institution={Rovira i Virgili University},
	year=2003,
	number=26
}

@techreport{Alhazo:RiVU_TR_26_03:Minimizing_Evol:03,
	author={Artiom Alhazov},
	title={Minimizing Evolution-Communication {P} systems and {EC} {P} automata},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Alhazo:RiVU_TR_26_03:Generating_Clas:03,
	author={Artiom Alhazov},
	title={Generating Classes of Languages by {P} systems and Other Devices},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Besozz:RiVU_TR_26_03:Hierarchies_of:03,
	author={Daniela Besozzi and Giancarlo Mauri and Claudio Zandron},
	title={Hierarchies of Parallel Rewriting {P} systems.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Csuhaj:RiVU_TR_26_03:From_Watson-Cri:03,
	author={Erzsebet Csuhaj-Varj{\'u} and Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un and
		Arto Salomaa},
	title={From {W}atson-{C}rick {L Systems} to {D}arwinian {P} systems.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Csuhaj:RiVU_TR_26_03:New_Results_and:03,
	author={Erzsebet Csuhaj-Varj{\'u} and Gyorgy Vaszil},
	title={New Results and Research Directions Concerning {P Automata}, Accepting {P}
		systems with Communication Only.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Bernar:RiVU_TR_26_03:Language_Genera:03,
	author={Francesco Bernardini and Marian Gheorghe},
	title={Language Generating by Means of {P} systems with Active Membranes},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Cioban:RiVU_TR_26_03:Sevilla_Carpets:03,
	author={Gabriel Ciobanu and Gheorghe P{\u a}un and Gheorghe Stefanescu},
	title={Sevilla Carpets Associated with {P} systems.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Arde:RiVU_TR_26_03:Mechanosensitiv:03,
	author={Ioan I. Ardelean and Daniela Besozzi},
	title={Mechanosensitive Channels, a Hot Topic in (Micro)Biology: any Excitement
		for {P} systems?},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Arde:RiVU_TR_26_03:Playing_with_a:03,
	author={Ioan I. Ardelean and Matteo Cavaliere},
	title={Playing with a Probabilistic {P} system Simulator: Mathematical and Biological
		Problems},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Krithi:RiVU_TR_26_03:P_Automata_with:03,
	author={Kamala Krithivasan},
	title={{P} Automata with Tapes},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Pere:RiVU_TR_26_03:Complexity_Clas:03,
	author={Mario J. P{\'e}rez-Jim{\'e}nez and Alvaro Romero-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Complexity Classes in Cellular Computing with Membranes},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Pere:RiVU_TR_26_03:Solving_VALIDIT:03,
	author={Mario J. P{\'e}rez-Jim{\'e}nez and Alvaro Romero-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Solving {VALIDITY} Problem by Active Membranes with Input},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Pere:RiVU_TR_26_03:Verification_of:03,
	author={Mario J. P{\'e}rez-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Verification of non-deterministic transition {P} systems solving {SAT} problem},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Cavali:RiVU_TR_26_03:Forbidding_and:03,
	author={Matteo Cavaliere and Natasha Jonoska},
	title={Forbidding and Enforcing in Membrane Computing.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Margen:RiVU_TR_26_03:Can_Hyperbolic:03,
	author={Maurice Margenstern},
	title={Can Hyperbolic Geometry Help Molecular Computing?},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Madhu:RiVU_TR_26_03:New_Results_in:03,
	author={Mutyam Madhu},
	title={New Results in Rewriting {P} systems},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Sosik:RiVU_TR_26_03:Solving_a_PSPAC:03,
	author={Petr Sos{\'i}k},
	title={Solving a {PSPACE}-Complete Problem by {P} systems with Active Membranes},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Ceterc:RiVU_TR_26_03:P_Systems_with:03,
	author={Rodica Ceterchi and Carlos Mart{\'i}n-Vide},
	title={{P} systems with Communication for Static Sorting.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Ceterc:RiVU_TR_26_03:Array-rewriting:03,
	author={Rodica Ceterchi and Mutyam Madhu and Gheorghe P{\u a}un and K.G. Subramanian},
	title={Array-rewriting {P} systems.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Ceterc:RiVU_TR_26_03:Generating_Pict:03,
	author={Rodica Ceterchi and Radu Gramatovici and Natasha Jonoska and K.G. Subramanian},
	title={Generating Picture Languages with {P} systems.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Freund:RiVU_TR_26_03:P_Systems_with:03,
	author={Rudolf Freund and Marion Oswald},
	title={{P} systems with Elementary Graph Productions},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Kris:RiVU_TR_26_03:Three_Universal:03,
	author={Shankara Narayanan Krishna and Andrei P{\u a}un},
	title={Three Universality Results on {P} systems},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Kris:RiVU_TR_26_03:Some_Universali:03,
	author={Shankara Narayanan Krishna and Andrei P{\u a}un},
	title={Some Universality Results on Evolution-Communication {P} systems},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Ji:RiVU_TR_26_03:Towards_a_Unifi:03,
	author={Sungchul Ji},
	title={Towards a Unified Theory of Computing, Mind, and Signs.},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Suzuki:RiVU_TR_26_03:Abstract_Rewrit:03,
	author={Yasuhiro Suzuki and Hiroshi Tanaka},
	title={Abstract Rewriting Systems on Multisets and Their Application for Modelling
		Complex Behaviours},
	institution={Rovira i Virgili University},
	year={2003},
	number={26}
}

@techreport{Lepora:DCSAUS_TR_01_04:Simulating_the:04,
	author={Alberto Leporati and Claudio Zandron and Giancarlo Mauri},
	title={Simulating the {Fredkin} {Gate} with Energy--Based {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Cordon:DCSAUS_TR_01_04:Looking_for_P_T:04,
	author={Andr{\'e}s Cord{\'o}n-Franco and Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez},
	title={Looking for {P Truth}},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Cordon:DCSAUS_TR_01_04:Weak_Metrics_on:04,
	author={Andr{\'e}s Cord{\'o}n-Franco and Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez
		and Agust{\'i}n Riscos-N{\'u}{\~n}ez},
	title={Weak Metrics on Configurations of a {P} system},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Alhazo:DCSAUS_TR_01_04:A_Note_on_P_Sys:04,
	author={Artiom Alhazov},
	title={A Note on {P} systems with Activators},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Alhazo:DCSAUS_TR_01_04:P_Systems_with:04,
	author={Artiom Alhazov and Rudolf Freund and Gheorghe P{\u a}un},
	title={{P} systems with Active Membranes and Two Polarizations},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Alhazo:DCSAUS_TR_01_04:Membrane_Operat:04,
	author={Artiom Alhazov and Tseren-Onolt Ishdorj},
	title={Membrane Operations in {P} systems with Active Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Besozz:DCSAUS_TR_01_04:Size_and_Power:04,
	author={Daniela Besozzi and Erzsebet Csuhaj-Varj{\'u} and Giancarlo Mauri and Claudio
		Zandron},
	title={Size and Power of Extended Gemmating {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Fontan:DCSAUS_TR_01_04:Maximum_Search:04,
	author={Federico Fontana and Giuditta Franco},
	title={Maximum Search Using {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Sancho:DCSAUS_TR_01_04:A_Note_on_Compl:04,
	author={Fernando Sancho-Caparrini},
	title={A Note on Complexity Measures for Probabilistic {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Bernar:DCSAUS_TR_01_04:Cell_Communicat:04,
	author={Francesco Bernardini and Marian Gheorghe},
	title={Cell Communication in Tissue {P} systems and Cell Division in Population
		{P Systems}},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Cioban:DCSAUS_TR_01_04:Pumps_Systems_o:04,
	author={Gabriel Ciobanu},
	title={Pumps Systems of Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Paun:DCSAUS_TR_01_04:Further_open_pr:04,
	author={Gheorghe P{\u a}un},
	title={Further open problems in membrane computing},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Paun:DCSAUS_TR_01_04:Tissue_P_System:04,
	author={Gheorghe P{\u a}un and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'i}n Riscos-N{\'u}{\~n}ez},
	title={Tissue {P} systems with Cell Division},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Paun:DCSAUS_TR_01_04:P_Systems_with:04,
  author       = {Gheorghe P{\u a}un and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'i}n Riscos-N{\'u}{\~n}ez},
  title        = {{P} systems with Tables of Rules},
  institution  = {Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
  year         = {2004},
  number       = {01/2004},
}

@techreport{Franco:DCSAUS_TR_01_04:Membrane_Kauffm:04,
	author={Giuditta Franco},
	title={{M}embrane {K}auffman {N}etworks},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Arde:DCSAUS_TR_01_04:New_Proposals_f:04,
	author={Ioan I. Ardelean and Daniela Besozzi},
	title={New Proposals for the Formalization of Membrane Proteins},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Arde:DCSAUS_TR_01_04:Computing_Using:04,
	author={Ioan I. Ardelean and Matteo Cavaliere and Dragos Sburlan},
	title={Computing Using Signals: From Cells to {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Nepo:DCSAUS_TR_01_04:A_Java_Simulato:04,
	author={Isabel A. Nepomuceno-Chamorro},
	title={A {Java} Simulator for Basic Transition {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Semp:DCSAUS_TR_01_04:Covering_Rules:04,
	author={Jos{\'e} M. Sempere},
	title={Covering Rules in {P} systems: Some Preliminary Ideas},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Pan:DCSAUS_TR_01_04:Further_Remarks:04,
	author={Linqiang Pan and Artiom Alhazov and Tseren-Onolt Ishdorj},
	title={Further Remarks on {P} systems with Active Membranes, Separation, Merging,
		and Release Rules},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Pan:DCSAUS_TR_01_04:Solving_Multidi:04,
	author={Linqiang Pan and Carlos Mart{\'i}n-Vide},
	title={Solving Multidimensional 0-1 {Knapsack} {Problem} by {P} systems with Input
		and Active Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Pan:DCSAUS_TR_01_04:P_Systems_with:04,
	author={Linqiang Pan and Tseren-Onolt Ishdorj},
	title={{P} systems with Active Membranes and Separation Rules},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Ledesm:DCSAUS_TR_01_04:A_Tissue_P_Syst:04,
	author={Lucas Ledesma and Daniel Manrique and Alfonso Rodr{\'i}guez-Pat{\'o}n and Andr{\'e}s
		Silva},
	title={A Tissue {P} system and a {DNA} Microfluidic Device for Solving the Shortest
		Common Superstring Problem},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Pere:DCSAUS_TR_01_04:Solving_the_BIN:04,
	author={Mario J. P{\'e}rez-Jim{\'e}nez and Francisco Jos{\'e} Romero-Campero},
	title={Solving the {BINPACKING} Problem by Recognizer {P} systems with Active Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Pere:DCSAUS_TR_01_04:A_CLIPS_Simulat:04,
	author={Mario J. P{\'e}rez-Jim{\'e}nez and Francisco Jos{\'e} Romero-Campero},
	title={A {CLIPS} Simulator for Recognizer {P} systems with Active Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Cavali:DCSAUS_TR_01_04:P_Systems_with:04,
	author={Matteo Cavaliere and Daniela Genova},
	title={{P} systems with Symport/Antiport of Rules},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Guti:DCSAUS_TR_01_04:Towards_a_Progr:04,
	author={Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'i}n Riscos-N{\'u}{\~n}ez},
	title={Towards a Programming Language in Cellular Computing},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Guti:DCSAUS_TR_01_04:An_Efficient_Ce:04,
	author={Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'i}n Riscos-N{\'u}{\~n}ez},
	title={An Efficient Cellular Solution for the Partition Problem},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Guti:DCSAUS_TR_01_04:Deductive_Datab:04,
	author={Miguel A. Guti{\'e}rrez-Naranjo and Vladimir Rogozhin},
	title={Deductive Databases and {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Ionesc:DCSAUS_TR_01_04:On_P_Systems_wi:04,
	author={Mihai Ionescu and Dragos Sburlan},
	title={On {P} systems with Promoters/Inhibitors},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Frisco:DCSAUS_TR_01_04:About_P_Systems:04,
	author={Pierluigi Frisco},
	title={About {P} systems with Symport/Antiport},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Ceterc:DCSAUS_TR_01_04:Simulating_Shuf:04,
	author={Rodica Ceterchi and Mario J. P{\'e}rez-Jim{\'e}nez},
	title={Simulating {Shuffle-Exchange} Networks with {P} systems},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Freund:DCSAUS_TR_01_04:Sequential_P_Sy:04,
	author={Rudolf Freund and Alberto Leporati and Marion Oswald and Claudio Zandron},
	title={Sequential {P} systems with Unit Rules and Energy Assigned to Membranes},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Freund:DCSAUS_TR_01_04:P_Systems_with_Active:04,
	author={Rudolf Freund and Andrei P{\u a}un},
	title={{P} systems with Active Membranes and without Polarizations},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Freund:DCSAUS_TR_01_04:Tissue-like_P_S:04,
	author={Rudolf Freund and Gheorghe P{\u a}un and Mario J. P{\'e}rez-Jim{\'e}nez},
	title={Tissue-like {P} systems with Channel-States},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Freund:DCSAUS_TR_01_04:P_Systems_with_Antiport:04,
	author={Rudolf Freund and Marion Oswald},
	title={{P} systems with Antiport Rules for Evolution Rules},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Rogozh:DCSAUS_TR_01_04:Simulation_of_M:04,
	author={Vladimir Rogozhin and Elena Boian},
	title={Simulation of Mobile Ambients by {P} systems. Part 2},
	institution={Dept. of Computer Sciences and Artificial Intelligence, Univ. of Sevilla},
	year={2004},
	number={01/2004}
}

@techreport{Sburlan:RNGC_Report,
	author={Dragos Sburlan},
	title={Membrane systems with promoters/inhibitors. From computational universality
		to algorithms},
	institution={Sevilla University},
	year={2004},
	number={04/2004},
	note={RNGC Report 04/2004}
}

@techreport{Cavaliere:RNGC_Report,
	author={Matteo Cavaliere},
	title={Evolution, communication and observation. From biology to membrane systems
		and back},
	institution={Sevilla University},
	year={2004},
	number={03/2004},
	note={RNGC Report 03/2004}
}

@techreport{Calude_Paun:CDMTCS_R246:Cells_and_atoms_five_years,
	author={Cristian S. Calude and Gheorghe P{\u a}un},
	title={Computing with Cells and Atoms: After Five Years},
	institution={Univ. of Auckland},
	year={2004},
	number={R 246},
	note={CDMTCS Tech. Rep. R 246}
}

@techreport{Korczynski:W2/2003:Transformacje:04,
	author={Waldemar Korczynski},
	title={Transformacje systemow {P}auna jako model przeksztalcen systemowych},
	institution={WSU Kielce},
	year={2004},
	number={W2/2003},
	note={Raport z Badan Grantu W2/2003}
}

@techreport{Cavaliere:Decision,
	author={Matteo Cavaliere and S. Sedwards},
	title={Decision Problems in Membrane Systems with Peripheral Proteins, Transport
		and Evolution},
	institution={Microsoft Research - University of Trento, Centre for Computational and
		Systems Biology},
	year={2006},
	address={Trento, Italy},
	number={12/2006},
	note={Microsoft Research - University of Trento, Centre for Computational and
		Systems Biology}
}

@techreport{Cavaliere:Membrane_Systems:TR_04/2006:2006,
	author={Matteo Cavaliere and S. Sedwards},
	title={Membrane systems with peripheral proteins: transport and evolution},
	institution={Microsoft Research - University of Trento, Centre for Computational and
		Systems Biology},
	year={2006},
	address={Trento, Italy},
	number={04/2006},
	note={Microsoft Research - University of Trento, Centre for Computational and
		Systems Biology}
}

@techreport{Campos:Development:INAOE:2006,
	author={J.M. Campos Diaz and E. Lopez Dominguez and S. Lopez Escobar and J. Estudillo
		Ramirez and L.D. Huerta Hernandez},
	title={Development of a cleaner robot using techniques of membranes},
	institution={Report INAOE},
	year={2006},
	address={Puebla, Mexic},
	note={Report INAOE}
}

@techreport{Paun:Bounding_the_indegree:TUCS_TR_773:2006,
	author={Gh. Paun and M.J. Perez-Jimenez and A. Salomaa},
	title={Bounding the indegree of spiking neural P systems},
	institution={TUCS Technical Report 773},
	year={2006}
}

@techreport{Cavaliere:Asynchronous,
	author={M. Cavaliere and O. Egecioglu and O.H. Ibarra and S. Woodworth and M. Ionescu
		and Gh. Paun},
	title={Asynchronous Spiking Neural {P} Systems Technical Report 9/2007, Microsoft
		Research - University of Trento, Centre for Computational and Systems Biology},
	institution={Microsoft Research - University of Trento},
	year={2007},
	number={9-2007}
}

@techreport{Cavaliere:Colonies_of:TRMR:2007,
	author={M. Cavaliere and R. Mardare and S. Sedwards},
	title={Colonies of Synchronizing Agents Technical Report 11-2007, Microsoft Research
		- University of Trento, Centre for Computational and Systems Biology},
	institution={Microsoft Research - University of Trento},
	year={2007},
	number={11-2007}
}