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@article{DE_1978_14_11_a17, author = {I. V. Kamenev}, title = {A note on {Nehari's} nonoscillation theorem}, journal = {Differencialʹnye uravneni\^a}, pages = {2073}, publisher = {mathdoc}, volume = {14}, number = {11}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_11_a17/} }
I. V. Kamenev. A note on Nehari's nonoscillation theorem. Differencialʹnye uravneniâ, Tome 14 (1978) no. 11. http://geodesic.mathdoc.fr/item/DE_1978_14_11_a17/