%0 Journal Article
%A Hotzel, E.
%T On semigroups whose nontrlvial left congruence classes are left ideals†
%J Glasgow mathematical journal
%D 1971
%P 1-5
%V 12
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001051/
%R 10.1017/S0017089500001051
%F 10_1017_S0017089500001051