TY  - JOUR
AU  - Tymchatyn, E. D.
TI  - A One-Parameter Subsemigroup which meets many Regular -Classes
JO  - Canadian journal of mathematics
PY  - 1969
SP  - 735
EP  - 739
VL  - 21
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-082-x/
DO  - 10.4153/CJM-1969-082-x
ID  - 10_4153_CJM_1969_082_x
ER  -