%0 Journal Article %A B. I. Aleksandriiskii %T The eigenfunction expansion of certain linear integro-differential equations %J Differencialʹnye uravneniâ %D 1969 %P 764-767 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_4_a18/ %G ru %F DE_1969_5_4_a18