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@article{DAN_1972_202_5_a6, author = {G. V. Rozenblum}, title = {The distribution of the discrete spectrum for singular differential operators}, journal = {Doklady Akademii Nauk}, pages = {1012--1015}, publisher = {mathdoc}, volume = {202}, number = {5}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_202_5_a6/} }
G. V. Rozenblum. The distribution of the discrete spectrum for singular differential operators. Doklady Akademii Nauk, Tome 202 (1972) no. 5, pp. 1012-1015. http://geodesic.mathdoc.fr/item/DAN_1972_202_5_a6/