References
- Ehrenfeucht , A. , Maurer , H. A. and Rozenberg , G. 1980 . Continuous grammars . Information and Control , 46 : 71 – 91 .
- Ehrenfeucht , A. and Rozenberg , G. 1976 . On proving that certain languages are not ETOL . Acta Informatica , 6 : 407 – 415 .
- Kleijn H. C. M. Rozenberg G Multi sequential, multi continuous and multi parallel grammars Techn. Rep. 81-33 Inst. Appl. Math, and Computer Science Leiden.
- Kleijn , H. C. M. and Rozenberg , G. 1981 . Context-free like restrictions on selective rewriting . Theor. Comp. Sci. , 16 : 237 – 269 .
- Kleijn , H. C. M. and Rozenberg , G. 1981 . Sequential, continuous and parallel grammars . Information and Control , 48 : 221 – 260 .
- Penttonen , M. 1975 . ETOL-grammars and N-grammars . Inf. Proc. Lett. , 4 : 11 – 13 .
- Penttonen , M. 1974 . One-sided and two-sided context in formal grammars . Information and Control , 25 : 371 – 392 .
- Rozenberg , G. 1977 . Selective substitution grammars (towards a framework for rewriting systems), Part I: Definitions and examples . EJK , 13 : 455 – 463 .
- Rozenberg , G. and Salomaa , A. 1980 . The Mathematical Theory of L Systems , New York : Academic Press .
- Rozenberg , G. and Wood , D. 1980 . Context-free grammars with selective rewriting . Acta Informatica , 13 : 257 – 268 .
- Salomaa , A. 1973 . Formal Languages , New York : Academic Press .