%0 Journal Article %A V. V. Ryndina %T A transformation operator for a sequence of solutions of a certain class of second order linear differential equations %J Differencialʹnye uravneniâ %D 1968 %P 1441-1451 %V 4 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1968_4_8_a9/ %G ru %F DE_1968_4_8_a9