1. H. Bordihn and H. Fernau, Accepting grammars and systems. Technical Report 9/94, Universität Karlsruhe, Fakultät für Informatik, 1994.
2. H. Bordihn and H. Fernau, Accepting grammars with regulation. Intern. J. Comp. Math.
53 (1994) 1–18.
3. H. Bordihn and H. Fernau, Accepting grammars and systems via context condition grammars. Journal of Automata, Languages and Combinatorics
1 (1996) 97–112.
4. E. Csuhaj-Varjú, J. Dassow, J. Kelemen and Gh. Păun, Grammar Systems: A Grammatical Approach to Distribution and Cooperation. Volume 5 of Topics in Computer Mathematics. Gordon and Breach, 1994.
5. E. Csuhaj-Varjú and Gy. Vaszil, On context-free parallel communicating grammar systems: synchronization, communication, and normal forms. Accepted for publication in Theoretical Computer Science.