1. N. Busi, R. Gorrieri, On the computational power of brane calculi, in: Third Workshop on Computational Methods in Systems Biology, Edinburgh, 2005
2. N. Busi, On the computational power of mate, bud, drip brane calculus: Interleaving vs. maximal parallelism, in: Pre-Proceedings of WMC6, Vienna, 2005, pp. 235–252
3. L. Cardelli, Brane calculi, interactions of biological membranes, in: Proceedings of Computational Methods in Systems Biology, 2004
4. L. Cardelli, Gh. Paun, An universality result based on mate/drip operations, International Journal of Foundations of Computer Science (in press)
5. Regulated Rewriting in Formal Language Theory;Dassow,1989