Andrei Paun. On P Systems with Active Membranes. In Ioannis Antoniou, Cristian Calude, Michael J. Dinneen, editors, Unconventional Models of Computation, UMC 2K, Proceedings of the Second International Conference, Brussel, Belgium, 13-16 December 2000. pages 187-201, Springer, 2000.
Abstract is missing.