@article {531, title = {Selected papers devoted to Membrane Computing. Editorial.}, journal = {Journal of Automata, Languages and Combinatorics}, volume = {11}, year = {2006}, pages = {239}, edition = {3}, issn = {1430-189X }, url = {http://www.jalc.de/search/j11_i.html}, author = {Gheorghe Paun and Mario J. P{\'e}rez-Jim{\'e}nez} }