@article {965,
	title = {Preface},
	journal = {Eleventh Brainstorming Week on Membrane Computing (11BWMC)},
	year = {2013},
	month = {08/2013},
	pages = {vii-ix},
	publisher = {F{\'e}nix Editora},
	address = {Sevilla, Espa{\~n}a},
	isbn = {978-84-940691-9-2},
	url = {http://www.gcn.us.es/files/11bwmc/preface.pdf},
	author = {Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez}
}
