%0 Journal Article %A King, J. P. %T A Class of Positive Linear Operators %J Canadian mathematical bulletin %D 1968 %P 51-59 %V 11 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-007-5/ %R 10.4153/CMB-1968-007-5 %F 10_4153_CMB_1968_007_5