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@article{MS_1956__80_4_a1, author = {{\CYRM}.{\CYRSH}. {\CYRB}{\cyri}{\cyrr}{\cyrm}{\cyra}{\cyrn}}, title = {{\CYRK} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyrs}{\cyra}{\cyrm}{\cyro}{\cyrs}{\cyro}{\cyrp}{\cyrr}{\cyrya}{\cyrzh}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyrr}{\cyra}{\cyrs}{\cyrsh}{\cyri}{\cyrr}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrzh}{\cyri}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro} {\cyro}{\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrv}}, journal = {Matemati\v{c}eskij sbornik}, pages = {431--450}, publisher = {mathdoc}, volume = {80}, number = {4}, year = {1956}, zbl = {0070.12102}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1956__80_4_a1/} }
М.Ш. Бирман. К теории самосопряженных расширений положительно определенных операторов. Matematičeskij sbornik, Tome 80 (1956) no. 4, pp. 431-450. http://geodesic.mathdoc.fr/item/MS_1956__80_4_a1/