Membrane Computing 10th International Workshop, WMC 2009, Curtea de Arges, Romania, August 24-27, 2009. Revised Selected and Invited Papers - Păun, Gheorghe; Pérez-Jiménez, Mario J.; Riscos-Núñez, Agustín; Rozenberg, Grzegorz; Salomaa, Arto (Springer Berlin Heidelberg, 2010)