1. Membrane computing

   • Natasha Jonoska
   • Gheorghe Păun

   Preface Pages: 297 - 298

2. Minimizing evolution-communication P systems and automata

   • Artiom Alhazov

   Special Feature Pages: 299 - 310

3. Languages generated by P systems with active membranes

   • Francesco Bernardini
   • Marian Gheorghe

   Special Feature Pages: 311 - 329

4. Hierarchies of parallel rewriting P systems — A survey

   • Daniela Besozzi
   • Giancarlo Mauri
   • Claudio Zandron

   Special Feature Pages: 331 - 347

5. A Prolog simulator for deterministic P systems with active membranes

   • Andrés Cordón-Franco
   • Miguel A. Gutiérrez-Naranjo
   • Fernando Sancho-Caparrini

   Special Feature Pages: 349 - 363

6. P systems with local graph productions

   • Rudolf Freund
   • Marion Oswald

   Special Feature Pages: 365 - 375

7. Results on catalytic and evolution-communication P systems

   • Shankara Narayanan Krishna
   • Andrei Pâun

   Special Feature Pages: 377 - 394

8. Semantic Web: A road to the knowledge infrastructure on the internet

   • Hideaki Takeda

   Tutorial Pages: 395 - 413

9. List of referees (2001/2002)

   Announcement Pages: 415 - 415