@article {,
	title = {An Approach to Computational Complexity in Membrane Computing},
	journal = {Lecture Notes in Computer Science},
	volume = {3365},
	year = {2005},
	pages = {85-109},
	publisher = {Springer},
	address = {Amsterdam, The Netherlands},
	abstract = {In this paper we present a theory of computational complexity in the framework of membrane computing. Polynomial complexity classes in recognizer membrane systems and capturing the classical deterministic and non-deterministic modes of computation, are introduced. In this context, a characterization of the relation  is described},
	isbn = {978-3-540-25080-7},
	issn = {0302-9743},
	url = {http://www.springerlink.com/content/2q16m1gmj3d1cc5v/?p=1b55597611584eac9c7c03342b480893\&pi=4},
	author = {Mario J. P{\'e}rez-Jim{\'e}nez}
}
