%0 Journal Article %A B. N. Devyatov %A N. A. Rubtsov %A V. P. Solov'ev %T A general method for the analytic investigation of nonlinear %J Doklady Akademii Nauk %D 1991 %P 951-957 %V 321 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_321_5_a16/ %G ru %F DAN_1991_321_5_a16