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@article{DE_1973_9_6_a14, author = {V. V. Gudkov}, title = {A remark on a certain boundary value problem}, journal = {Differencialʹnye uravneni\^a}, pages = {1133--1135}, publisher = {mathdoc}, volume = {9}, number = {6}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_6_a14/} }
V. V. Gudkov. A remark on a certain boundary value problem. Differencialʹnye uravneniâ, Tome 9 (1973) no. 6, pp. 1133-1135. http://geodesic.mathdoc.fr/item/DE_1973_9_6_a14/