References
- diese Nachr v.26 Zur Strukturtheorie der Halbgruppen H.J.Hoehnke
- Canad. J. Math. v.18 Structure of semigroups H.J.Hohenke
- Ph.D. thesis, University of Iowa semigroups satisfying ring-like conditions W.J.Jones
- J. ACM v.10 On the structure of an automation and its input semigroup R.H.Oehmke
- Trans. AMS v.125 On maximal congruences and finite semisimple semigroups R.H.Oehmke
- Math. Nachr. v.29 Uber das Rodical evner Halbgruppe H.Seidel
- Comm. Korean Math. Soc. v.8 no.3 Some remarks on the automata- homomorphism C.H.Park
- Korean J. Comput. and Appl. Math. v.6 no.1 Some remarks on the structure of free automata C.H.Park