1. Csuhaj-Varjú, E., Masopust, T., Vaszil, G.: Cooperating distributed grammar systems with permitting grammars as components. Romanian Journal of Information Science and Technology 12(2), 175–189 (2009)
2. Dassow, J., Păun, G.: Regulated Rewriting in Formal Language Theory. Springer (1989)
3. Goldefus, F., Masopust, T., Meduna, A.: Left-forbidding cooperating distributed grammar systems. Theoretical Computer Science 20(3), 1–11 (2010)
4. Greibach, S.A., Hopcroft, J.E.: Scattered context grammars. Journal of Computer and System Sciences 3(3), 233–247 (1969)
5. Lecture Notes in Computer Science;HCM Kleijn,1987