%0 Journal Article %A A. L. Štaras %T Asymptotic integration of weakly nonlinear partial differential equations %J Doklady Akademii Nauk %D 1977 %P 525-528 %V 237 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_237_3_a5/ %G ru %F DAN_1977_237_3_a5