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@article{DE_1988_24_4_a29, author = {V. B. Sokolovskii}, title = {On a generalization of the {Neumann} problem}, journal = {Differencialʹnye uravneni\^a}, pages = {714--716}, publisher = {mathdoc}, volume = {24}, number = {4}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1988_24_4_a29/} }
V. B. Sokolovskii. On a generalization of the Neumann problem. Differencialʹnye uravneniâ, Tome 24 (1988) no. 4, pp. 714-716. http://geodesic.mathdoc.fr/item/DE_1988_24_4_a29/