@article {,
	title = {Special Issue on Membrane Computing},
	journal = {Theoretical Computer Science},
	volume = {372},
	number = {2-3},
	year = {2007},
	pages = {123-266},
	issn = {0304-3975},
	author = {Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
