%0 Journal Article %A P. P. Zabreiko %T The Schaefer method in the theory of Hammerstein integral equations %J Sbornik. Mathematics %D 1971 %P 451-471 %V 13 %N 3 %U http://geodesic.mathdoc.fr/item/SM_1971_13_3_a7/ %G en %F SM_1971_13_3_a7