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@article{DE_1967_3_10_a6, author = {K. V. Valikov}, title = {Nonlinear differential equations in a {Banach} space, close to linear ones}, journal = {Differencialʹnye uravneni\^a}, pages = {1692--1706}, publisher = {mathdoc}, volume = {3}, number = {10}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1967_3_10_a6/} }
K. V. Valikov. Nonlinear differential equations in a Banach space, close to linear ones. Differencialʹnye uravneniâ, Tome 3 (1967) no. 10, pp. 1692-1706. http://geodesic.mathdoc.fr/item/DE_1967_3_10_a6/