%0 Journal Article %A É. V. Nikol'skii %T The method of generalized functionally invariant solutions for %J Doklady Akademii Nauk %D 1989 %P 1304-1308 %V 308 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_6_a4/ %G ru %F DAN_1989_308_6_a4