%0 Journal Article %A V. M. Evtukhov %T On a nonlinear differential equation of second order %J Doklady Akademii Nauk %D 1977 %P 531-534 %V 233 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_233_4_a5/ %G ru %F DAN_1977_233_4_a5