%0 Journal Article
%A Yu. V. Pokornyi
%T Second solutions of the nonlinear de la Vallée Poussin problem
%J Differencialʹnye uravneniâ
%D 1970
%P 1599-1605
%V 6
%N 9
%U http://geodesic.mathdoc.fr/item/DE_1970_6_9_a6/
%G ru
%F DE_1970_6_9_a6