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@article{DE_1985_21_5_a3, author = {N. L. Korshikova}, title = {Zeros of solutions of a class of $n$th order linear equations}, journal = {Differencialʹnye uravneni\^a}, pages = {757--764}, publisher = {mathdoc}, volume = {21}, number = {5}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1985_21_5_a3/} }
N. L. Korshikova. Zeros of solutions of a class of $n$th order linear equations. Differencialʹnye uravneniâ, Tome 21 (1985) no. 5, pp. 757-764. http://geodesic.mathdoc.fr/item/DE_1985_21_5_a3/