%0 Journal Article %A V. I. Lebedev %T On a type of quadrature formulas of increased algebraic accuracy for a sphere %J Doklady Akademii Nauk %D 1976 %P 32-34 %V 231 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_231_1_a6/ %G ru %F DAN_1976_231_1_a6