R. Freund, Gh. Paun, G. Rozenberg, A. Salomaa (ed.):
"Membrane Computing · 6th International Workshop, WMC 2005, Vienna, Austria, July 18-21, 2005, Revised Selected and Invited Papers";
Springer LNCS 3850, Berlin, 2006, ISBN: 978-3-540-30948-2; 371 pages.