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On Szilard’s languages associated to a matrix grammar. (English) Zbl 0398.68032

MSC:
68Q45 Formal languages and automata
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References:
[1] Moryia, E., Associate languages and derivational complexity of formal grammars and languages, Information and control, 22, 2, 139-162, (1973) · Zbl 0254.68017
[2] Pǎun, Gh., Matrix grammars: applications, (1979), Stiintificǎ si Enciclopedicǎ Bucuresti, (in Rumanian) · Zbl 0392.68060
[3] Salomaa, A., On some families of formal languages obtained by regulated rewriting, Ann. acad. sci. fenn., 1, 479, (1970), Ser. A. · Zbl 0217.22605
[4] Salomaa, A., Formal languages, (1973), Academic Press New York, London · Zbl 0262.68025
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