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@article{DE_1975_11_5_a6, author = {V. G. Skatetsky}, title = {A certain theorem of {B.\,P.~Demidovi{\v{c}}}}, journal = {Differencialʹnye uravneni\^a}, pages = {835--840}, publisher = {mathdoc}, volume = {11}, number = {5}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_5_a6/} }
V. G. Skatetsky. A certain theorem of B.\,P.~Demidovi{\v{c}}. Differencialʹnye uravneniâ, Tome 11 (1975) no. 5, pp. 835-840. http://geodesic.mathdoc.fr/item/DE_1975_11_5_a6/