%0 Journal Article %T A Note on Endomorphism Semigroups %J Canadian mathematical bulletin %D 1970 %P 526-526 %V 13 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-096-2/ %R 10.4153/CMB-1970-096-2 %F 10_4153_CMB_1970_096_2