[4] Ginsburg S.:
The mathematical theory of context free languages. McGraw-Hill, New York, 1966.
MR 0211815 |
Zbl 0184.28401
[5] Gladkiĭ A. V.:
Formaľnye grammatiki i jazyki. Nauka, Moskva, 1973.
MR 0353731
[6] Gluškov V. M., Ceĭtlin G. E., Juščenko E. L.: Algebra, jazyki, programmirovanie. Naukova dumka, Kiev, 1974.
[7] Gruska J.:
On a classification of context-free languages. Kybernetika (Prague) 3, Nr. 1 (1967), 22-29.
MR 0209092 |
Zbl 0158.25401
[8] Gruska J.:
Descriptional complexity of context-free languages. Mathematical Foundations of Computer Science. Proceedings of Symposium and Summer School. High Tatra, September 3-8, 1973 (1973), 71-83.
MR 0405938
[10] Istrail S.:
О problemă despre gramaticile contextuale. Stud. Cerc. Mat. 30 (1978), 135-140.
MR 0502295
[11] Istrail S.:
Gramatici contextuale cu selectivitate regulată. Stud. Cerc. Mat. 30 (1978), 287-294.
MR 0500803
[12] Letičevskii A. A.:
Sintaksis i semantika formaľnyh jazykov. Kibernetika (Kiev), No 4 (1968), 1-9.
MR 0299429
[14] Novotný M.: On a class of contextual grammars. Cahiers Linguistique Théor. Appl. 11, Fasc. 2 (1974), 313-315.
[15] Novotný M.:
On some variants of contextual languages. Rev. Roumaine Math. Pures Appl. 21 (1976), 1053-1062.
MR 0428829
[16] Păun G.:
Asupra gramaticilor contextuale. Stud. Cerc. Mat. 26 (1974), 1111 - 1129.
MR 0368500
[17] Păun G.:
On the smallest number of nonterminals required to generate a context-free language. Rev. Anal. Numér. Théor. Approx. 18 (41), t. 2 (1976), 203 - 208.
MR 0489052
[18] Păun G.:
Contextual grammars with restrictions in derivation. Rev. Roumaine Math. Pures Appl. 22 (1977), 1147-1154.
MR 0495259
[19] Păun G.: Operaţii cu gramatici şi limbaje contextuale. Stud. Cerc. Mat. 30 (1978), 425-439.
[20] Păun G.:
On some classes of contextual grammars. Bull. Math. Soc. Sci. Math. R.S. Roumanie 22 (70) (1978), 183-189.
MR 0506451
[21] Păun G.:
Marcus' contextual grammars and languages. A survey. Rev. Roumaine Math. Pures Appl. 24 (1979), 1467-1486.
MR 0554566 |
Zbl 0421.68066