@article {,
	title = {Computational Complexity in P Systems},
	journal = {Workshop on Membrane Computing, WMC5},
	year = {2004},
	month = {June 14-16},
	pages = {63},
	address = {Mil{\'a}n, Italia},
	attachments = {http://www.gcn.us.es/biblio/q=node/files/Computational Complexity in P Systems.pdf},
	author = {Mario J. P{\'e}rez-Jim{\'e}nez},
	editor = {Giancarlo Mauri and Gheorghe Paun and Claudio Zandron}
}
