%0 Journal Article %A G. M. Goncharov %T On some existence theorems for the solutions of a class of nonlinear operator equations %J Matematičeskie zametki %D 1970 %P 229-237 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1970_7_2_a11/ %G ru %F MZM_1970_7_2_a11