@PhDThesis{	  Ionescu:Membrane-Computing-Traces,
  author       = {Mihai Ionescu},
  title        = {Membrane Computing. Traces, Neural Inspired Models
                  Controls},
  school       = {Universitat Rovira i Virgili},
  year         = {2008},
  address      = {Tarragona, Spain},
}

@PhDThesis{	  Brijder:Natural-Computation-Gene-Assembly.Systems,
  author       = {Robert Brijder},
  title        = {Models of Natural Computation: Gene Assembly and Membrane
                  Systems},
  school       = {Leiden University},
  year         = {2008},
  address      = {Netherlands},
}

@phdthesis{Liang:2007,
  author       = {Huang Liang},
  title        = {Research on Membrane Computing. Optimization Methods},
  school       = {Institute of Advanced Process Control, Zhejiang University},
  year         = {2007},
  address      = {China},
  bibdate      = {04/06/09},
}

@phdthesis{Romero-Campero:2008,
  author       = {Francisco J. Romero-Campero},
  title        = {{P}~systems, a computational modelling framework for systems
                  biology},
  school       = {Universidad de Sevilla},
  year         = {2008},
  address      = {Spain},
  bibdate      = {04/06/09},
}

@phdthesis{Romero-Campero:PhD:2008,
  author       = {Francisco J. Romero-Campero},
  title        = {P systems, a computational modelling framework for systems biology},
  school       = {University of {S}evilla},
  year         = {2008},
  address      = {Sevilla, Spain},
}

@phdthesis{Zandron:PhD:2002,
	author={Claudio Zandron},
	title={A Model for Molecular Computing: Membrane Systems},
	school={Dipartimento di Scienze dell'Informazione, Universita' degli Studi di Milano},
	year={2002},
	address={Milano, Italy}
}

@phdthesis{Sancho-Caparrini:PhD:2002,
	author={Fernando Sancho-Caparrini},
	title={Verification of Programs in Unconventional Computing Models},
	school={University of {S}evilla},
	year={2002},
	address={Sevilla, Spain}
}

@phdthesis{Krishna:PhD:2002,
	author={Shankara-Narayanan Krishna},
	title={Languages of {P Systems}. {C}omputability and Complexity},
	school={Indian Institute of Technology},
	year={2002},
	address={Madras, India}
}

@phdthesis{Romero-Jimenez:PhD:2003,
	author={Alvaro Romero-Jim{\'e}nez},
	title={Complexity and universality in cellular computing models},
	school={Departamento de {C}iencias de la {C}omputaci{\'o}n e {I}nteligencia {A}rtificial.
		{U}niversidad de {S}evilla},
	year={2003},
	address={Sevilla, Spain}
}

@phdthesis{Paun:PhD:2003,
	author={Andrei P{\u a}un},
	title={Unconventional Models of Computation: {DNA} and {M}embrane {C}omputing},
	school={University of Western Ontario},
	year={2003},
	month={May},
	address={London, Ontario, Canada}
}

@phdthesis{Oswald:PhD:2003,
	author={Marion Oswald},
	title={{P Automata}},
	school={Faculty of Computer Science. TU Vienna},
	year={2003},
	month={November},
	address={Vienna, Austria}
}

@phdthesis{Madhu:PhD:2003,
	author={Mutyam Madhu},
	title={Studies of {P Systems} as a model of cellular computing},
	school={Dept. of Computer Science and Engineering, Indian Institute of Technology},
	year={2003},
	address={Madras, India}
}

@phdthesis{Riscos-Nunez:PhD:2004,
	author={Agust{\'i}n Riscos-N{\'u}{\~n}ez},
	title={Cellular Programming: Efficient Resolution of {NP-Complete} Numerical Problems},
	school={Universidad de Sevilla},
	year={2004},
	address={Sevilla, Spain}
}

@phdthesis{Besozzi:PhD:2004,
	author={Daniela Besozzi},
	title={Computational and modelling power of {P systems}},
	school={Universita' degli Studi di Milano},
	year={2004},
	address={Milano, Italy}
}

@phdthesis{Arroyo:PhD:2004,
	author={Fernando Arroyo-Montoro},
	title={Structures and Biolanguage to Simulate Membrane Computing},
	school={Departamento de {I}nteligencia {A}rtificial. {F}acultad de {I}nform{\'a}tica.
		{U}niversidad {P}olit{\'e}cnica de {M}adrid},
	year={2004},
	month={June},
	address={Madrid, Spain}
}

@phdthesis{Lakshmanan:PhD:2004,
  author       = {L. Lakshmanan},
  title        = {On the Crossroads of {P Systems} and Contextual Grammars: Variants, Computability
                  Complexity and Efficiency},
  school       = {Dept. of Mathematics, Indian Institute of Technology},
  year         = {2004},
  address      = {Madras, India},
}

@phdthesis{Frisco:PhD:2004,
	author={Pierluigi Frisco},
	title={Theory of Molecular Computing. {S}plicing and {M}embrane Systems},
	school={Leiden University, The Netherlands},
	year={2004}
}

@phdthesis{Verlan:PhD:2004,
  author       = {Sergey Verlan},
  title        = {Head systems and application to bio-informatics},
  school       = {{LITA}, Universit\'e de Metz},
  year         = {2004},
  address      = {Metz, France},
}

@phdthesis{Bernardini:PhD:2005,
	author={Francesco Bernardini},
	title={Membrane Systems for Molecular Computing and Biological Modelling},
	school={University of Sheffield},
	year={2005},
	address={Sheffield, UK}
}

@phdthesis{Cienciala:PhD:2005,
	author={Ludek Cienciala},
	title={P automata},
	school={University of Ostrava},
	year={2005},
	address={Ostrava, Czech Republic}
}

@phdthesis{Alhazov:PhD:2006,
	author={Artiom Alhazov},
	title={Communication in Membrane Systems with Symbol Objects},
	school={University of Sevilla, Spain},
	year={2006},
	address={Sevilla, Spain}
}

@phdthesis{Popa:PhD:2006,
	author={B. Popa},
	title={Membrane Systems with Limited Parallelism},
	school={College of Engineering and Science, Louisiana Tech University, Ruston, USA},
	year={2006},
	address={Ruston, USA}
}

@phdthesis{Sburlan:PhD:2006,
	author={Dragos Sburlan},
	title={Promoting and Inhibiting Contexts in Membrane Computing},
	school={University of Sevilla},
	year={2006},
	address={Sevilla, Spain}
}

@phdthesis{Cavaliere:PhD:2006,
	author={Mateo Cavaliere},
	title={Evolution, communication, observation: From biology to membrane computing
		and back},
	school={University of Sevilla},
	year={2006},
	address={Sevilla, Spain}
}

@phdthesis{Bianco:PhD:2007,
	author={L. Bianco},
	title={Membrane Models of Biological Systems},
	school={Universita' degli Studi di Verona, Italy},
	year={2007},
	address={Verona, Italy}
}

@phdthesis{Hemalatha:PhD:2007,
	author={S. Hemalatha},
	title={A Study on Rewriting {P} Systems, Splicing Grammar Systems and Picture Array
		Languages},
	school={University of Chennai, India},
	year={2007},
	address={India}
}

@phdthesis{Ishdorj:PhD:2007,
	author={T. O. Ishdorj},
	title={Membrane Computing, Neural Inspiration, Gene Assembly in Ciliates},
	school={Universidad de Sevilla, Spain},
	year={2007},
	address={Sevilla, Spain}
}