%0 Journal Article %A Fillmore, P. A. %T A Note on Reductive Operators %J Canadian mathematical bulletin %D 1979 %P 101-102 %V 22 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-015-3/ %R 10.4153/CMB-1979-015-3 %F 10_4153_CMB_1979_015_3