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@article{MS_1965__110_1_a6, author = {{\CYRM}.{\CYRV}. {\CYRF}{\cyre}{\cyrd}{\cyro}{\cyrr}{\cyryu}{\cyrk}}, title = {{\CYRA}{\cyrs}{\cyri}{\cyrm}{\cyrp}{\cyrt}{\cyro}{\cyrt}{\cyri}{\cyrk}{\cyra} {\cyrd}{\cyri}{\cyrs}{\cyrk}{\cyrr}{\cyre}{\cyrt}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyrp}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyra} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyra} $w^{\prime \prime }-\ensuremath{\lambda}^2 p(x)w(x)=0$}, journal = {Matemati\v{c}eskij sbornik}, pages = {81--110}, publisher = {mathdoc}, volume = {110}, number = {1}, year = {1965}, zbl = {0238.34032}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1965__110_1_a6/} }
М.В. Федорюк. Асимптотика дискретного спектра оператора $w^{\prime \prime }-λ^2 p(x)w(x)=0$. Matematičeskij sbornik, Tome 110 (1965) no. 1, pp. 81-110. http://geodesic.mathdoc.fr/item/MS_1965__110_1_a6/