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Translations on a context free grammar. (English) Zbl 1282.68147

Proceedings of the 1st annual ACM symposium on theory of computing, STOC’69, Marina del Rey, CA, USA, May 5–7, 1969. New York, NY: Association for Computing Machinery (ACM). 93-112 (1969).

MSC:

68Q42 Grammars and rewriting systems
68Q45 Formal languages and automata
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