1. Universality of minimal symport/antiport;Bernardini,2004
2. P automata or purely communicating accepting P systems;Csuhaj-Varjú,2003
3. Regulated Rewriting in Formal Language Theory;Dassow,1989
4. A short note on analysing P systems with antiport rules;Freund;Bull. EATCS,2002
5. P Systems with activated/prohibited membrane channels;Freund,2003