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@article{DE_1990_26_3_a23, author = {V. V. Dubrovskii}, title = {Asymptotics of the spectral function of an ordinary differential operator}, journal = {Differencialʹnye uravneni\^a}, pages = {533--534}, publisher = {mathdoc}, volume = {26}, number = {3}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_3_a23/} }
V. V. Dubrovskii. Asymptotics of the spectral function of an ordinary differential operator. Differencialʹnye uravneniâ, Tome 26 (1990) no. 3, pp. 533-534. http://geodesic.mathdoc.fr/item/DE_1990_26_3_a23/