%0 Journal Article %A E. Mendelsohn %T On a technique for representing semigroups as endomorphism semigroups of graphs with given property. %J Semigroup forum %D 1972 %P 283-294 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1972__4_133907/ %F SF_1972__4_133907