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@article{DE_1977_13_11_a20, author = {A. Ya. Lepin}, title = {Sufficient conditions for the solvability of a certain boundary value problem}, journal = {Differencialʹnye uravneni\^a}, pages = {2082--2083}, publisher = {mathdoc}, volume = {13}, number = {11}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_11_a20/} }
A. Ya. Lepin. Sufficient conditions for the solvability of a certain boundary value problem. Differencialʹnye uravneniâ, Tome 13 (1977) no. 11, pp. 2082-2083. http://geodesic.mathdoc.fr/item/DE_1977_13_11_a20/