@article {270,
	title = {Weak metrics on configurations of a P system},
	journal = {Second Brainstorming Week on Membrane Computing},
	year = {2004},
	month = {February 2-7},
	pages = {139-151},
	address = {Sevilla, Espa{\~n}a},
	isbn = {84-688-6101-4},
	url = {http://www.cs.us.es/~marper/investigacion/metricas.pdf},
	attachments = {http://www.gcn.us.es/files/weak metrics on configurations of a P system.pdf},
	author = {Andr{\'e}s Cord{\'o}n-Franco and Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'\i}n Riscos-N{\'u}{\~n}ez},
	editor = {Gheorghe Paun and Agust{\'\i}n Riscos-N{\'u}{\~n}ez and {\'A}lvaro Romero-Jim{\'e}nez and Fernando Sancho-Caparrini}
}
