References
- Pure Mathematics and Applications v.5 no.2 On free and torsion-free automata C.H.Park
- Semigroup Forum v.48 On right congruences associated with the input semigroup S of automata C.H.Park
- J. ACM v.10 On the structure of an automaton and its input semigroup Robert H. Oehmke
- Semigroup Forum v.15 The semigroup of a strongly connected automaton Robert H. Oehmke
- Pure mathematics and Applications, Ser. A v.3 no.3-4 On projective automata Robert H. Oehmke
- Algebraic Theory of Automata F. Gecseg;I. Peak
- Algebraic Theory of Automata F.Gecseg;I.Peak
- Korean J. Comput. and Appl. Math v.5 no.3 the direct product of right congruences Robert H. Oehmke