%0 Journal Article %A P. P. Zabreiko %T The $L_2$-theory of linear Fredholm integral equations of the second kind %J Differencialʹnye uravneniâ %D 1995 %P 1498-1507 %V 31 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1995_31_9_a8/ %G ru %F DE_1995_31_9_a8