Gheorghe Paun, Mario J. Pérez-Jiménez, Agustin Riscos-Núñez, Grzegorz Rozenberg, Arto Salomaa: Membrane Computing, 10th International Workshop, WMC 2009, Curtea de Arges, Romania, August 24-27, 2009. Revised Selected and Invited Papers. Lecture Notes in Computer Science 5957, Springer 2010, ISBN 978-3-642-11466-3