%0 Journal Article
%A M.B. Szendrei
%T On a pull-back diagram for orthodox semigroups.
%J Semigroup forum
%D 1980
%P 1-10
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1980__20_134400/
%F SF_1980__20_134400