%0 Journal Article %T Corrections: A Note on Endomorphism Semigroups %J Canadian mathematical bulletin %D 1971 %P 273-273 %V 14 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-054-8/ %R 10.4153/CMB-1971-054-8 %F 10_4153_CMB_1971_054_8