@proceedings {225,
	title = {Fourth Brainstorming Week on Membrane Computing},
	journal = {Fourth Brainstorming Week on Membrane Computing},
	volume = {II},
	year = {2006},
	month = {30/01/2006},
	pages = {XII+278},
	publisher = {F{\'e}nix Editora},
	address = {Seville (Spain)},
	isbn = {84-611-0519-2},
	url = {http://www.gcn.us.es/4BWMC/4BWMC_proceedings.htm},
	author = {Carmen Graciani-D{\'\i}az and Gheorghe Paun and {\'A}lvaro Romero-Jim{\'e}nez and Fernando Sancho-Caparrini}
}
