%0 Journal Article %A Borwein, David %T Weighted Mean Operators on lp %J Canadian mathematical bulletin %D 2000 %P 406-412 %V 43 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2000-048-3/ %R 10.4153/CMB-2000-048-3 %F 10_4153_CMB_2000_048_3