1. Regulated Rewriting in Formal Language Theory;Dassow,1989
2. Regulated Rewriting in Formal Language Theory;Dassow,1990
3. TOL schemes and control sets;Ginsburg;Inform. and Control,1975
4. Formal Languages;Salomaa,1973
5. k-limited OL systems and languages;Wätjen;J. Inform. Process. Cybernet.,1988