%0 Journal Article %A L. A. Vainshtein %A M. G. Belkina %T The double reduction method and infinite systems of linear equations for the expansion coefficients of an unknown function with singularities %J Doklady Akademii Nauk %D 1970 %P 794-797 %V 194 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_194_4_a14/ %G ru %F DAN_1970_194_4_a14