%0 Journal Article %A A. T. Taldykin %T The orthogonal expansion of a function of two arguments, and the solutions of certain equations %J Differencialʹnye uravneniâ %D 1974 %P 1111-1116 %V 10 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_6_a13/ %G ru %F DE_1974_10_6_a13