%0 Journal Article %A M. M. Vainberg %A I. M. Lavrent'ev %T Equations with monotone and potential operators in Banach spaces %J Doklady Akademii Nauk %D 1969 %P 711-714 %V 187 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_187_4_a0/ %G ru %F DAN_1969_187_4_a0