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@article{DE_1970_6_9_a6, author = {Yu. V. Pokornyi}, title = {Second solutions of the nonlinear de la {Vall\'ee} {Poussin} problem}, journal = {Differencialʹnye uravneni\^a}, pages = {1599--1605}, publisher = {mathdoc}, volume = {6}, number = {9}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1970_6_9_a6/} }
Yu. V. Pokornyi. Second solutions of the nonlinear de la Vall\'ee Poussin problem. Differencialʹnye uravneniâ, Tome 6 (1970) no. 9, pp. 1599-1605. http://geodesic.mathdoc.fr/item/DE_1970_6_9_a6/