%0 Journal Article %A A.V. Mikhalev %A U. Knauer %T Endomorphism monoids of acts over monoids. %J Semigroup forum %D 1974 %P 50-58 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1974__6_133959/ %F SF_1974__6_133959