Literature Cited
R. W. Floyd, “On the nonexistence of a phrase structure grammar for ALGOL 60,” Comm. ACM,5, 483–484 (1962).
M. Sintzoff, “Existence of A. van Wijngaarden syntax for every recursively enumerable set,” Extract des Annales de la Société Scientifique de Bruxelles,81, No. 11, 115–118 (1967).
S. Ginsburg, The Mathematical Theory of Context-Free Languages, McGraw-Hill (1966).
Algorithmic Language ALGOL 60 (1965).
Additional information
Translated from Kibernetika, No. 3, pp. 1–3, May–June, 1972.
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Letichevskii, A.A. A generalization of the concept of a context-free grammar. Cybern Syst Anal 8, 349–351 (1972). https://doi.org/10.1007/BF01068989
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DOI: https://doi.org/10.1007/BF01068989