@misc{Zandron:Priorities_and_Variable_Thickness:2000,
	author={Claudio Zandron and Claudio Ferretti and Giancarlo Mauri},
	title={Priorities and Variable Thickness of Membranes in Rewriting {P} Systems},
	year={2000}
}

@misc{Freund:Computing_with_Membranes_Three:2000,
	author={Rudolf Freund and Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un},
	title={Computing with Membranes: Three More Collapsing Hierarchies},
	year={2000}
}

@misc{Stefan:Chaotic_membrane_computation:2002,
	author={Gheorghe Stefan},
	title={Chaotic membrane computation with cellular automata},
	year={2002}
}

@misc{Cioban:A_Computational:Un,
	author={Gabriel Ciobanu and Vlad Ciubotariu and Bogdan Tanasa},
	title={A Computational Model of Membrane Transportation},
	howpublished={Submitted}
}

@misc{Bel_En:Dynamic_meaning:Un,
	author={Gemma Bel-Enguix and M. Dolores Jim{\'e}nez-L{\'o}pez},
	title={Dynamic meaning membrane systems},
	howpublished={Submitted}
}

@misc{Bel_En:Membrane_system:Un,
	author={Gemma Bel-Enguix and M. Dolores Jim{\'e}nez-L{\'o}pez},
	title={Membrane systems for conversation modeling},
	note={Gemma Bel-Enguix, Introducing Parallelism in Conversation Modeling with
		Membrane Systems (submitted).},
	howpublished={Submitted}
}

@misc{Cavali:Evolutioncomm:Un,
	author={Matteo Cavaliere},
	title={Evolution, communication and observation. From biology to membrane systems
		and back},
	note={RNGC Report 03/2004, Sevilla University.},
	howpublished={Submitted}
}

@misc{Madhu:Rewriting_P_Sys:Un,
	author={Mutyam Madhu},
	title={Rewriting {P} Systems. Collapsing Hierarchies},
	note={Theoretical Computer Science, to appear},
	howpublished={Submitted}
}

@misc{Freund:On_Deterministi:Un,
	author={Rudolf Freund and Gheorghe P{\u a}un},
	title={On Deterministic {P Systems}},
	howpublished={Submitted}
}

@misc{Qi:The_P_system_ba:Un,
	author={Zhengwei Qi and Jinyuan You and Ying Jin and Hongyan Mao},
	title={The {P System} based transaction model for mobile computing},
	howpublished={Submitted}
}

@misc{Botton:Membrane_System:00,
	author={Paolo Bottoni and Carlos Mart{\'i}n-Vide and Gheorghe P{\u a}un and Grzegorz
		Rozenberg},
	title={Membrane Systems with Promoters/Inhibitors.},
	year={2000},
	howpublished={Submitted}
}

@misc{Krishna:On_Simple_P_Sys:00,
	author={Shankara Narayanan Krishna and Raghavan Rama},
	title={On Simple {P Systems} with External Output},
	year={2000},
	howpublished={Submitted}
}

@misc{Obtulo:Note_on_some_re:01,
	author={Adam Obtulowicz},
	title={Note on some recursive family of {P Systems} with active membranes},
	year={2001},
	howpublished={Submitted}
}

@misc{Rodrig:Computing_with_:01,
	author={Alfonso Rodriguez-Pat{\'o}n},
	title={Computing with Membranes: {P Systems} with {DNA-Worms}},
	note={GECCO, 2001 (poster)},
	year={2001},
	howpublished={GECCO, 2001 (poster)}
}

@misc{Paun:On_the_reachabi:01,
	author={Gheorghe P{\u a}un and Mario J. P{\'e}rez-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={On the reachability problem for {P Systems} with porters},
	note={Proc. AFL10, Debrecen, 2002},
	year={2001},
	howpublished={Submitted}
}

@misc{Subr:A_note_on_self_: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}},
	note={Pre-Proceedings of WMC 2001 (No est{\'a} en los proceedings: Fundamenta Informaticae
		49)},
	year={2001}
}

@misc{Krishna:Time-Varying_an:01,
	author={Shankara Narayanan Krishna and Raghavan Rama},
	title={Time-Varying and Null Parallel {P Systems}},
	note={No aparece},
	year={2001},
	howpublished={No aparece}
}

@misc{Ciobanu:Distributed_com:02,
	author={Gabriel Ciobanu},
	title={Distributed computing in {P Systems} with antiport communication},
	year={2002},
	howpublished={Submitted}
}

@misc{Madhu:A_Note_on_P_Sys:02,
	author={Mutyam Madhu},
	title={A Note on {P Systems} with Replicated Rewriting},
	year={2002},
	howpublished={Submitted}
}

@misc{Madhu_:Hybrid_P_System:02,
	author={Mutyam Madhu and Kamala Krithivasan},
	title={Hybrid {P Systems}: Improved Universality Results},
	note={Poster in Unconventional Models of Computation, UMC-02, Himeji, Japan, October
		15-19, 2002},
	year={2002},
	month={October 15-19},
	howpublished={Poster in Unconventional Models of Computation, UMC-02, Himeji, Japan, October
		15-19, 2002}
}

@misc{Madhu:Hardware_Realiz:02,
	author={Mutyam Madhu and Vadali S. Murty and Kamala Krithivasan},
	title={Hardware Realization of {P Systems} with Carriers},
	note={Poster presentation in the Eighth International Conference on DNA based
		Computers, Hokkaido University, Sapporo Campus, Japan, June 10-13, 2002},
	year={2002},
	month={June},
	howpublished={Poster presentation in the Eighth International Conference on DNA based
		Computers, Hokkaido University, Sapporo Campus, Japan, June 10-13, 2002}
}

@misc{Krishna:Infinite_hierar:02,
	author={Shankara Narayanan Krishna},
	title={Infinite hierarchies on some variants of {P Systems}},
	year={2002},
	howpublished={Submitted}
}

@misc{Ji:Towards_the_mod:Un,
	author={Sungchul Ji and Gabriel Ciobanu},
	title={Towards the modeling of cell communication and computation using the shape
		algebra of biopolymers},
	note={psystems.disco.unimib.it},
	year={2002},
	howpublished={psystems.disco.unimib.it}
}

@misc{Syropo:Fuzzyfying_P_Sy:Un,
	author={A. Syropoulos},
	title={Fuzzyfying {P Systems}},
	year={2003},
	howpublished={Submitted}
}

@misc{Obtulo:New_mathematica:Un,
	author={Adam Obtulowicz},
	title={New mathematical foundations of membrane computing; Attacking {NP} complete
		problems revisited},
	year={2003},
	howpublished={Submitted}
}

@misc{PerezJ:Computing_a_par:01,
	author={Antonio Perez-Jimenez and Mario J. Perez-Jimenez and Fernando Sancho-Caparrini},
	title={Computing a partial mapping by {P Systems}: Design and verification},
	note={M. Cavaliere, C. Mart{\'i}n-Vide, Gh. Paun (Eds), Brainstorming Week on Membrane
		Computing; Tarragona, Feb 5-11 2003, 247-260},
	year={2003}
}

@misc{Lakshm:Computational_U:Un,
	author={K. Lakshmanan},
	title={Computational Universality and Solving {NP} Complete Problems using Insertion
		Deletion Tissue {P Systems}},
	year={2003},
	howpublished={Submitted}
}

@misc{Verlan:2MOLCONET:2003,
	author={Sergei Verlan},
	title={Communicating Distributed H Systems with Alternating Filters and Tissue
		P Systems with Minimal Symport/Antiport},
	note={EMCC Workshop - 2nd Annual MolCoNet Meeting November 27-29, 2003 Wien, Austria},
	year={2003}
}

@misc{Cordon-Franco:Cellular,
  author       = {A. Cordon-Franco and M.A. Guti{\'e}rrez-Naranjo and M.J. Perez-Jimenez and A.
                  Riscos-Nunez},
  title        = {Cellular solutions to some numerical NP-complete problems. A Prolog implementation
                  Molecular Computational Models},
  note         = {Idea-Group, London 2004, 115--149},
  year         = {2004},
  howpublished = {Unconventional Approaches (M. Gheorghe, ed.)},
}

@misc{Binder:Implem_of_Catalytic:Subm04,
	author={Aneta Binder and Rudolf Freund and Georg Lojka and Marion Oswald},
	title={Implementation of catalytic {P Systems}},
	note={CIAA 2004, Ninth Intern. Conf. on Implementation and Application of Automata,
		Kingston, Canada, 2004, 24--33},
	year={2004},
	howpublished={Submitted}
}

@misc{DiNola:Handling_Imprecision:04,
	author={Antonio Di-Nola and Gheorghe P{\u a}un and Mario J. P{\'e}rez-Jim{\'e}nez and Francesc
		Rossell{\'o}},
	title={(Imprecise Topic About) {H}andling Imprecision in {P Systems}},
	year={2004},
	howpublished={Submitted}
}

@misc{Sburlan:Bull:2004,
	author={D. Sburlan},
	title={New Results on {P} systems with multiset promoted/inhibited rules},
	note={pages 45--54},
	year={2004},
	howpublished={Bull. PAMM, 2164}
}

@misc{Bertinshaw:algorithmic_learning:04,
	author={Daniel Bertinshaw},
	title={Algorithmic learning applications to {P Systems}},
	year={2004},
	howpublished={Submitted}
}

@misc{Besozzi:Dynamical_prob:Subm04,
	author={Daniela Besozzi and Claudio Zandron},
	title={Dynamical probabilistic {P Systems}},
	note={¿DNA10 poster?},
	year={2004},
	howpublished={Submitted}
}

@misc{Csuhaj:PC_grammar_systems:Subm04,
	author={Erzs{\'e}bet Csuhaj-Varj{\'u} and Gheorghe P{\u a}un and Gyorgy Vaszil},
	title={Grammar systems vs. membrane computing: The case of {PC} grammar systems},
	year={2004},
	howpublished={Submitted}
}

@misc{Csuhaj:CD_grammar_systems:Subm04,
	author={Erzs{\'e}bet Csuhaj-Varj{\'u} and Gheorghe P{\u a}un and Gyorgy Vaszil},
	title={Grammar systems vs. membrane computing: The case of {CD} grammar systems},
	year={2004},
	howpublished={Submitted}
}

@misc{CsuhajVarju:On_The_Comp:Subm04,
	author={Erzs{\'e}bet Csuhaj-Varj{\'u} and Oscar H. Ibarra and Gyorgy Vaszil},
	title={On the computational complexity of {P automata}},
	note={DNA 10},
	year={2004},
	howpublished={Submitted}
}

@misc{Bel:Linguistic_membrane:Subm04,
  author       = {Gemma Bel-Enguix and M. Dolores Jim{\'e}nez-L{\'o}pez},
  title        = {Linguistic membrane systems and applications},
  note         = {Gemma Bel-Enguix and M. Dolores Jim{\'e}nez-L{\'o}pez, Linguistic membrane systems
                  and applications, in G. Ciobanu and Gh. P{\u a}un and M.J. P{\'e}rez-Jim{\'e}nez (eds.)
                  Applications of Membrane Computing, Berlin, Springer-Verlag (in press).},
  year         = {2004},
  howpublished = {Submitted},
}

@misc{Paun:P_Systems_on_Gr:Un,
	author={Gheorghe P{\u a}un and Yasubumi Sakakibara and Takashi Yokomori},
	title={{P Systems} on Graphs of Restricted Forms},
	note={Publicationes Mathematicae Debrecen, to appear},
	year={2004},
	howpublished={Publicationes Mathematicae Debrecen, to appear}
}

@misc{Bianco:P_,
	author={Luca Bianco and Federico Fontana and Giuditta Franco and Vincenzo Manca},
	title={{P Systems} in bio systems},
	note={in G. Paun, P systems: Applications and Perspectives, to appear, 2004},
	year={2004},
	howpublished={Submitted}
}

@misc{PerezJimenez:Hard_Problems:04,
	author={M.J. Perez-Jimenez and Alvaro Romero-Jim{\'e}nez and Fernando Sancho-Caparrini},
	title={Hard problems addressed through {P Systems}},
	year={2004},
	howpublished={Submitted}
}

@misc{Cavaliere:Modelling_respiration:Subm04,
	author={Matteo Cavaliere and Ioan I. Ardelean},
	title={Modelling respiration in bacteria and respiration/photosynthesis interaction
		in Cyanobacteria by using a {P System} simulator},
	year={2004},
	howpublished={Submitted}
}

@misc{Cavaliere:time_free_P_Systems:04,
	author={Matteo Cavaliere and Vincenzo Deufemia},
	title={On time-free {P Systems}},
	year={2004},
	howpublished={Submitted}
}

@misc{Madhu:leftmost_rewriting:04,
	author={Mutyam Madhu and Kamala Krithivasan},
	title={Tissue {P Systems} with leftmost rewriting},
	year={2004},
	howpublished={Submitted}
}

@misc{Ibarra:Determinism_Versus_Nondeterminism:04,
	author={Oscar H. Ibarra},
	title={On Determinism Versus Nondeterminism in {P Systems}},
	year={2004},
	howpublished={Submitted}
}

@misc{Ibarra:maximal_parallelism_in_P:Subm04,
	author={Oscar H. Ibarra and H.-C. Yen and Zhe Dang},
	title={The power of maximal parallelism in {P Systems}},
	note={To appear in Proceedings of DLT'04 Lecture Notes in Computer Science, Springer.
		2004.},
	year={2004},
	howpublished={Submitted}
}

@misc{Freund:Asynchronous_P_systems_on:Subm04,
	author={Rudolf Freund},
	title={Asynchronous {P Systems} on arrays and strings},
	note={DLT'04 - Eighth International Conference on Developments in Language Theory.
		To appear in Proceedings of DLT'04 Lecture Notes in Computer Science, Springer.
		2004.},
	year={2004},
	howpublished={Submitted}
}

@misc{Freund:Dynamic_Channels_2004,
	author={Rudolf Freund and Marion Oswald},
	title={P systems with dynamic channels transporting membrane vesicles},
	year={2004},
	howpublished={Submitted}
}

@misc{Verlan:Tissue_with_minimal:Subm04,
	author={Sergey Verlan},
	title={Tissue {P Systems} with minimal symport/antiport},
	note={DLT'04 - Eighth International Conference on Developments in Language Theory,
		Auckland, New Zealand - December 13-17 2004},
	year={2004}
}

@misc{Krishna:Mobile_membranes:04,
	author={Shankara Narayanan Krishna and Gheorghe P{\u a}un},
	title={{P Systems} with mobile membranes},
	year={2004},
	howpublished={Submitted}
}

@misc{Ishdorj:Replicative_distribution_rules:Subm04,
	author={Tseren Onolt Ishdorj and Mihai Ionescu},
	title={Replicative-distribution rules in {P Systems} with active membranes},
	note={First International Colloquium on THEORETICAL ASPECTS OF COMPUTING Guiyang,
		China 20 - 24 September 2004},
	year={2004},
	howpublished={Submitted}
}

@misc{Korczynski:tool_to_deal_concurrency:Subm04,
	author={Waldemar Korczynski},
	title={{P Systems} as a tool to deal with concurrency in accounting},
	year={2004},
	howpublished={Submitted}
}

@misc{Suzuki:Toward_a_novel:Subm04,
	author={Yasuhiro Suzuki and Daniela Besozzi and Claudio Zandron and Hiroshi Tanaka
		and Giancarlo Mauri},
	title={Toward a novel computational framework for molecular computing: chemical
		reaction as computation},
	note={DNA10, Milano, 2004},
	year={2004},
	howpublished={Submitted}
}

@misc{Apostolos:Generalized_fuzzy:2005,
	author={A. Apostolos},
	title={Generalized fuzzy multisets and {P} systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Apaun:P,
	author={A. Paun and B. Popa},
	title={P systems with proteins on membranes},
	year={2005},
	howpublished={Submitted}
}

@misc{Porreca:Complexity,
	author={A. Porreca and G. Mauri and C. Zandron},
	title={Complexity Classes for Membrane Systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Rodriguez:characterize,
  author       = {A. Rodriguez-Paton and P. Sosik},
  title        = {P systems with active membranes characterize {PSPACE}},
  booktitle    = {DNA Computing, 12th Int. Meeting on DNA Computing, DNA 12},
  year         = {2006},
  publisher    = {Springer-Verlag, Berlin},
  address      = {Seoul, Korea},
  editor       = {C. Mao, T. Yokomori},
  pages        = {33--46},
  abstract     = {A P system is a natural computing model inspired by information
                  processes in cells and a control role of cellular membranes. We show that uniform families of P systems with active membranes are able to solve, in polynomial time, exactly the class of decisional problems {PSPACE}. Similar results were achieved also with other models of bio-inspired computers, such as DNA computing. Together they suggest that {PSPACE} naturally characterizes the computational potential of biological information processing.},
  series       = {Lecture Notes in Computer Science},
  volume       = {4287},
}

@misc{Bonchis:UC05:2005,
	author={C. Bonchis and G. Ciobanu and C. Isbasha and D. Petcu},
	title={A web-based P system simulator and its parallelization},
	year={2005},
	howpublished={UC05, accepted}
}

@misc{Graciani:UC05:2005,
	author={C. Graciani and A. Riscos-Nunez},
	title={Looking for simple common schemes to design recognizer P systems with active
		membranes that solve numerical decision problems},
	year={2005},
	howpublished={UC05, accepted}
}

@misc{Csuhaj:Editing_Configurations:2005,
	author={Erzsebet Csuhaj-Varju and Antonio Di Nola and Gheorghe P{\u a}un and Mario
		Jes{\'u}s P{\'e}rez-Jim{\'e}nez and Gy{\"o}rgy Vaszil},
	title={Editing configurations of {P} systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Bernardini:Quorum,
	author={F. Bernardini and M. Gheorghe and N. Krasnogor},
	title={Quorum sensing P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Bernardini:UC05:2005,
	author={F. Bernardini and M. Gheorghe and N. Krasnogor and J.-L. Giavitto},
	title={On self-assembly in population P systems},
	year={2005},
	howpublished={UC05, accepted}
}

@misc{Ciobanu:The,
	author={G. Ciobanu and Gheorghe P{\u a}un},
	title={The minimal parallelism is still universal (for P systems with symport/antiport
		rules)},
	year={2005}
}

@misc{Paun:MC_Power_Efficiency_applications:2005,
	author={Gheorghe P{\u a}un},
	title={Membrane computing: Power, efficiency, applications},
	year={2005},
	howpublished={Submitted}
}

@misc{Paun:Brief,
	author={Gheorghe P{\u a}un and M.J. Perez-Jimenez},
	title={Membrane computing: Brief introduction, recent results and applications},
	year={2005},
	howpublished={Submitted}
}

@misc{Paun:Infinite,
	author={Gheorghe P{\u a}un and M.J. Perez-Jimenez and G. Rozenberg},
	title={Infinite spike trains in spiking neural P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Paun:Spike,
	author={Gheorghe P{\u a}un and M.J. Perez-Jimenez and G. Rozenberg},
	title={Spike trains in spiking neural P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Paun:MC_and_Economics:submitted:2005,
	author={Gheorghe P{\u a}un and R. Paun},
	title={Membrane Computing and Economics: Numerical P Systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Paun:Mcas_a_framework:2005,
	author={Gheorghe P{\u a}un and R. Paun},
	title={Membrane computing as a framework for modeling economic processes},
	year={2005},
	howpublished={Submitted}
}

@misc{Cardona:Handling,
	author={M. Cardona and M. Angels Colomer and M.J. Perez-Jimenez and A. Zaragoza},
	title={Handling Markov chains with membrane computing},
	year={2005},
	howpublished={Submitted}
}

@misc{Cavaliere:external,
	author={M. Cavaliere and A. Riscos-Nunez and G. Rozenberg and D. Sburlan},
	title={Membrane systems with external control},
	year={2005},
	howpublished={Submitted}
}

@misc{Cavaliere:marked,
	author={M. Cavaliere and A. Riscos-Nunez and R. Brijder and G. Rozenberg},
	title={Membrane systems with marked membranes},
	year={2005},
	howpublished={Submitted}
}

@misc{Gheorghe:self-assembly:submitted:2005,
	author={M. Gheorghe and Gheorghe P{\u a}un},
	title={Computing by self-assembly: DNA molecules, polyominoes, cells},
	year={2005},
	howpublished={Submitted}
}

@misc{Gutierrez-Naranjo:UC05:2005,
  author       = {M. Guti{\'e}rrez-Naranjo and M.J. Perez-Jimenez},
  title        = {P systems with active membranes, without polarizations and without dissolution:
                  a characterization of P},
  year         = {2005},
  howpublished = {UC05, accepted},
}

@misc{Ionescu:Spiking,
	author={M. Ionescu and Gheorghe P{\u a}un and T. Yokomori},
	title={Spiking neural-like P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Perez-Jimenez:ECAL:2005,
	author={M.J. Perez-Jimenez and F.J. Romero-Campero},
	title={Modelling Vibrio fischeri's behaviour Using P Systems},
	year={2005},
	month={September},
	howpublished={accepted in the Systems Biology Workshop, ECAL 2005}
}

@misc{Perez:Modelling_EFGR:2005,
	author={Mario J. P{\'e}rez-Jimenez and Francisco Jos{\'e} Romero-Campero},
	title={Modelling EGFR signalling network using continuous membrane systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Ibarra:context-sensitive,
	author={O.H. Ibarra and Gheorghe P{\u a}un},
	title={Characterizations of context-sensitive languages and other language classes
		in terms of symport/antiport P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Ibarra:On,
	author={O.H. Ibarra and H.-C. Yen},
	title={On deterministic catalytic P systems},
	year={2005},
	howpublished={Submitted}
}

@misc{Brijder:Communication,
	author={R. Brijder and G. Rozenberg and M. Cavaliere and A. Riscos-Nunez and D. Sburlan},
	title={Communication membrane systems with active symports},
	year={2005},
	howpublished={Submitted}
}

@misc{R_Paun:Producers_retailers:manuscript:2005,
	author={R. Paun},
	title={Producers, retailers, and their investments. A membrane computing approach},
	year={2005},
	howpublished={manuscript}
}

@misc{Freund:Tissue_P_Sys_Symp_Ant_are_universal:2005,
	author={Rudolf Freund and Marion Oswald},
	title={Tissue P systems with symport/antiport rules of one symbol are computationally
		universal},
	year={2005},
	howpublished={Submitted}
}

@misc{Dang:UC05:2005,
	author={Z. Dang and O.H. Ibarra and C. Li and G. Xie},
	title={On model-checking of P systems},
	year={2005},
	howpublished={UC05, accepted}
}

@misc{Apaun:ewriting,
	author={A. Paun and B. Popa},
	title={Rewriting P systems with communication by symport rules},
	year={2006},
	howpublished={Submitted}
}

@misc{Apaun:Small_universal:Submitted:2006,
	author={A. Paun and Gheorghe P{\u a}un},
	title={Small universal spiking neural P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{GhPaun:Manuscript:2006,
	author={Gheorghe P{\u a}un},
	title={2006 Research topics in membrane computing},
	year={2006},
	howpublished={Nanuscript}
}

@misc{Chen:Spiking_neural:Submitted:2006,
	author={H. Chen and Gheorghe P{\u a}un and M.J. Perez-Jimenez},
	title={Spiking neural P systems with extended rules},
	year={2006},
	howpublished={Submitted}
}

@misc{Chen:Trace_languages:Submitted:2006,
	author={H. Chen and M. Ionescu and A. Paun and Gheorghe P{\u a}un and B. Popa},
	title={On trace languages generated by spiking neural P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Chen:String_languages:Submitted:2006,
	author={H. Chen and R. Freund and M. Ionescu and Gheorghe P{\u a}un and M.J. Perez-Jimenez},
	title={On string languages generated by spiking neural P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Kleijn:Process_semantics:Submitted:2006,
	author={J. Kleijn and M. Koutny and G. Rozenberg},
	title={Process semantics for membrane systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Bianco:Computation_of_biochemical:2006,
	author={L. Bianco and F. Fontana and V. Manca},
	title={Computation of biochemical dynamics using MP systems},
	year={2006},
	howpublished={Computational Methods in Systems Biology, International Conference (poster)}
}

@misc{GutierrezNaranjo:Manuscript:2006,
  author       = {M.A. Guti{\'e}rrez-Naranjo},
  title        = {Fractals and P systems},
  year         = {2006},
  howpublished = {Manuscript},
}

@misc{Busi:Decidability:Submitted:2006,
	author={N. Busi},
	title={Decidability of divergence for catalytic P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Ibarra:Normal_forms:Submitted:2006,
	author={O.H. Ibarra and A. Paun and Gheorghe P{\u a}un and A. Rodriguez-Paton and
		P. Sosik and S.Woodworth},
	title={Normal forms for spiking neural P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Frisco:Dynamics_of_HIV:2006,
	author={P. Frisco and D. W. Corne},
	title={Dynamics of HIV infection studied with Cellular Automata and Conformon-P
		systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Krishna:Combining:Submitted:2006,
	author={S. Krishna},
	title={Combining brane calculus and membrane computing},
	year={2006},
	howpublished={Submitted}
}

@misc{Ishdorj:Minimal,
	author={T.-O. Ishdorj},
	title={Minimal parallelism for polarizationless P systems},
	year={2006},
	howpublished={Submitted}
}

@misc{Dang:Decidability:Submitted:2006,
	author={Z. Dang and O.H. Ibarra and C. Li},
	title={Decidability of model-checking P systems},
	year={2006},
	howpublished={Submitted}
}