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@article{MS_1989__176_4_a3, author = {{\CYRYU}.{\CYRV}. {\CYRE}{\cyrg}{\cyro}{\cyrr}{\cyro}{\cyrv} and {\CYRV}.{\CYRA}. {\CYRK}{\cyro}{\cyrn}{\cyrd}{\cyrr}{\cyra}{\cyrt}{\cyrsftsn}{\cyre}{\cyrv}}, title = {{\CYRO}{\cyrb} {\cyro}{\cyrc}{\cyre}{\cyrn}{\cyrk}{\cyre} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyra} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {\cyro}{\cyrt}{\cyrr}{\cyri}{\cyrc}{\cyra}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyrp}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyra} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyra} {{\CYRSH}{\cyrr}{\cyre}{\cyrd}{\cyri}{\cyrn}{\cyrg}{\cyre}{\cyrr}{\cyra}}}, journal = {Matemati\v{c}eskij sbornik}, pages = {556--570}, publisher = {mathdoc}, volume = {176}, number = {4}, year = {1989}, zbl = {0669.35086}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1989__176_4_a3/} }
Ю.В. Егоров; В.А. Кондратьев. Об оценке числа точек отрицательного спектра оператора Шредингера. Matematičeskij sbornik, Tome 176 (1989) no. 4, pp. 556-570. http://geodesic.mathdoc.fr/item/MS_1989__176_4_a3/