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@article{DE_1974_10_7_a13, author = {V. A. Sadovnichy}, title = {The zeta-function and eigenvalues of differential operators}, journal = {Differencialʹnye uravneni\^a}, pages = {1276--1285}, publisher = {mathdoc}, volume = {10}, number = {7}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1974_10_7_a13/} }
V. A. Sadovnichy. The zeta-function and eigenvalues of differential operators. Differencialʹnye uravneniâ, Tome 10 (1974) no. 7, pp. 1276-1285. http://geodesic.mathdoc.fr/item/DE_1974_10_7_a13/