%0 Journal Article %A V. N. Temlyakov %T Estimates of the best bilinear approximations of functions of two %J Sbornik. Mathematics %D 1989 %P 95-109 %V 62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1989_62_1_a5/ %G en %F SM_1989_62_1_a5