1. Nonterminal complexity of one-sided random context grammars

   • Alexander Meduna
   • Petr Zemek

   Original Article 11 February 2012 Pages: 55 - 68

2. A trace-based service semantics guaranteeing deadlock freedom

   • Christian Stahl
   • Walter Vogler

   Original Article 22 February 2012 Pages: 69 - 103

3. The identity problem of finitely generated bi-ideals

   • A. Lorencs

   Original Article 22 February 2012 Pages: 105 - 115