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Some uniformly erasable families of languages. (English) Zbl 0343.68033

##### MSC:
 68Q45 Formal languages and automata
Full Text:
##### References:
 [1] Ginsburg, S., The mathematical theory of context-free languages, (1966), McGraw-Hill New York · Zbl 0184.28401 [2] Ginsburg, S.; Goldstine, J.; Greibach, S., Uniformly erasable AFL, J. comput. system sci., 10, 165-182, (1975) · Zbl 0325.68042 [3] Ginsburg, S.; Greibach, S., Abstract families of languages, (), 1-32 · Zbl 0308.68058 [4] Ginsburg, S.; Greibach, S., Principal AFL, J. comput. system. sci., 4, 308-338, (1970) · Zbl 0198.03102 [5] Ginsburg, S.; Rose, G., A characterization of machine mappings, Can. J. math., 18, 381-388, (1966) · Zbl 0143.01903 [6] Ginsburg, S.; Spanier, E., Finite-turn pushdown automata, SIAM J. control, 4, 429-453, (1966) · Zbl 0147.25302 [7] Goldstine, J., Abstract families of languages generated by bounded languages, () [8] Greibach, S., An infinite hierarchy of context-free languages, J. ACM, 16, 91-106, (1969) · Zbl 0182.02002 [9] S. Greibach, Erasable context-free languages, in preparation. · Zbl 0317.68059 [10] Myhill, J., Finite automata and the representation of events, Wright air development command tech. note 57-624, 112-137, (1957) [11] Ullian, J., Three theorems concerning principal AFL’s, J. comput. system sci., 5, 304-314, (1971) · Zbl 0217.22701
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