1. On the efficiency of P systems with active membranes and two polarizations;Alhazov,2004
2. Solving a PSPACE-complete problem by recognizing P systems with restricted active membranes;Alhazov;Fundam. Inform.,2003
3. Trading polarizations for labels in P systems with active membranes;Alhazov;Acta Inform.,2004
4. Time-independent P systems;Cavaliere,2005
5. On small universal antiport P systems;Erzsébet;Theor. Comput. Sci.,2007