Bednarek, A. R.; Norris, E. M. Congruences and ideals in machines. I. (English) Zbl 0213.02105 Rev. Roum. Math. Pures Appl. 15, 193-199 (1970). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents MSC: 68Q70 Algebraic theory of languages and automata 68Q45 Formal languages and automata × Cite Format Result Cite Review PDF