1. Formal Grammars and Languages;Gladkij,1973
2. Representation theorems for context-sensitive languages;Haines,1970
3. On one-sided context-sensitive grammars;Havel,1970
4. Synchronized left context-sensitive transformations of regular languages;Katz;Nauch. Tekh. Inform. Ser. 2,1974
5. Classes of languages and linear bounded automata;Kuroda;Inform. Contr.,1964