%0 Journal Article %A M. M. Vainberg %T Equations with nonlinear accretive and monotone operators, and Galerkin--Petrov approximations %J Doklady Akademii Nauk %D 1971 %P 754-757 %V 197 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_197_4_a3/ %G ru %F DAN_1971_197_4_a3