%0 Journal Article %A Herstein, I. N. %T A Note on Derivations II %J Canadian mathematical bulletin %D 1979 %P 509-511 %V 22 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-066-2/ %R 10.4153/CMB-1979-066-2 %F 10_4153_CMB_1979_066_2