TY  - JOUR
AU  - Hotzel, E.
TI  - On semigroups whose nontrlvial left congruence classes are left ideals†
JO  - Glasgow mathematical journal
PY  - 1971
SP  - 1
EP  - 5
VL  - 12
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001051/
DO  - 10.1017/S0017089500001051
ID  - 10_1017_S0017089500001051
ER  -