%0 Journal Article %A N. B. Pleshchinskii %T On some classes of integral equations solvable in closed form %J Differencialʹnye uravneniâ %D 1989 %P 533-534 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_3_a23/ %G ru %F DE_1989_25_3_a23