%0 Journal Article
%A A. Ali Ismaeel
%T On some problems of Petrich concerning Brück and Reilly semigroups.
%J Semigroup forum
%D 1992
%P 283-287
%V 45
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1992__45_3_135192/
%F SF_1992__45_3_135192