%0 Journal Article %A Holub, J. R. %T On Shift Operators %J Canadian mathematical bulletin %D 1988 %P 85-94 %V 31 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-013-8/ %R 10.4153/CMB-1988-013-8 %F 10_4153_CMB_1988_013_8