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@article{MI_1978__47_189449, author = {{\CYRP}.{\CYRA}. {\CYRK}{\cyro}{\cyrzh}{\cyru}{\cyrh}{\cyra}{\cyrr}{\cyrsftsn} and {\CYRI}.{\CYRA}. {\CYRF}{\cyre}{\cyrl}{\cyrsftsn}{\cyrd}{\cyrm}{\cyra}{\cyrn}}, title = {{\CYRO} {\cyrk}{\cyro}{\cyrn}{\cyre}{\cyrch}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrd}{\cyri}{\cyrs}{\cyrk}{\cyrr}{\cyre}{\cyrt}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyrp}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyra} {\cyrv}{\cyro}{\cyrz}{\cyrm}{\cyru}{\cyrshch}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyra}{\cyrm}{\cyro}{\cyrs}{\cyro}{\cyrp}{\cyrr}{\cyrya}{\cyrzh}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyra}}, journal = {Matemati\v{c}eskie issledovani\^a}, pages = {35--40}, publisher = {mathdoc}, volume = {47}, year = {1978}, zbl = {0425.47008}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MI_1978__47_189449/} }
П.А. Кожухарь; И.А. Фельдман. О конечности дискретного спектра возмущенного самосопряженного оператора. Matematičeskie issledovaniâ, Tome 47 (1978), pp. 35-40. http://geodesic.mathdoc.fr/item/MI_1978__47_189449/