%0 Journal Article %A Lin, C-S %T On Certain Classes of Bounded Linear Operators %J Canadian mathematical bulletin %D 1970 %P 469-473 %V 13 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-086-6/ %R 10.4153/CMB-1970-086-6 %F 10_4153_CMB_1970_086_6