참고문헌
- K. Korean Math. Soc. v.29 Generalized Semiautomorphism Group of Modules C.H. Park
- semigroup Forum v.48 On right congruences associated with the input Semigroup S of Automata C.H. Park
- Pure Mathematics and Application Ser. A On Free and Torsion-Free Automata, vol. 5 C.H. Park
- Korean J. Comput. and Appl. Math. v.2 Small and Large Automata C.H. Park
- Modules and Rings F. Kasch
- Modules and the Structure of Rings J.S, Golan;T. Head