%0 Journal Article %A Prolla, João B. %T Slice-products in bivariate approximation %J Portugaliae mathematica %D 1992 %P 333-347 %V 49 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1992__49_3_115794/ %G en %F PORMA_1992__49_3_115794