%0 Journal Article %A Borwein, David %T Matrix Operators on lp to lq %J Canadian mathematical bulletin %D 1994 %P 448-456 %V 37 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-065-7/ %R 10.4153/CMB-1994-065-7 %F 10_4153_CMB_1994_065_7