@article {490,
	title = {On the efficiency of cell-like and tissue-like recognizing membrane systems},
	journal = {International Journal of Intelligent Systems},
	volume = {24},
	year = {2009},
	month = {05/2009},
	pages = {747-765},
	abstract = {Cell-like recognizing membrane systems are computational devices in the framework of membrane computing inspired from the structure of living cells, where biological membranes are arranged hierarchically. In this paper tissue-like recognizing membrane systems are presented. The idea is to consider that membranes are placed in the nodes of a graph, mimicking the cell intercommunication in tissues.
In this context, polynomial complexity classes associated with recognizing membrane systems can be defined. We recall the definition for cell-like systems, and we introduce the corresponding complexity classes for the tissue-like case. Moreover, in this paper two efficient solutions to the satisfiability problem are analyzed and compared from a complexity point of view. {\textcopyright} 2009 Wiley Periodicals, Inc.},
	issn = {0884-8173 },
	url = {http://www3.interscience.wiley.com/journal/122383409/abstract?CRETRY=1\&SRETRY=0},
	author = {Miguel A. Guti{\'e}rrez-Naranjo and Mario J. P{\'e}rez-Jim{\'e}nez and Agust{\'\i}n Riscos-N{\'u}{\~n}ez and Francisco J. Romero-Campero}
}
