%0 Journal Article %A R. I. Kachurovskii %T Three theorems on nonlinear equations with monotonic operators %J Doklady Akademii Nauk %D 1968 %P 33-36 %V 183 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_183_1_a7/ %G ru %F DAN_1968_183_1_a7