%0 Journal Article
%A Petrich, Mario
%T Semigroups certain of whose subsemigroups have identities
%J Czechoslovak Mathematical Journal
%D 1966
%P 186-198
%V 16
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1966.100723/
%R 10.21136/CMJ.1966.100723
%G en
%F 10_21136_CMJ_1966_100723