%0 Journal Article %A S. I. Temirbulatov %T On methods for investigating integro-differential equations %J Differencialʹnye uravneniâ %D 1991 %P 1994-1998 %V 27 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_11_a20/ %G ru %F DE_1991_27_11_a20