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@article{MS_1971__126_4_a4, author = {{\CYRA}.{\CYRI}. {\CYRL}{\cyro}{\cyrg}{\cyri}{\cyrn}{\cyro}{\cyrv}}, title = {{\CYRP}{\cyro}{\cyrl}{\cyrn}{\cyrery}{\cyre} {\cyrk}{\cyro}{\cyrm}{\cyrm}{\cyru}{\cyrt}{\cyra}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyre} {\cyrs}{\cyri}{\cyrm}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrch}{\cyrn}{\cyrery}{\cyre} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyrn}{\cyrery}{\cyre} {\cyra}{\cyrl}{\cyrg}{\cyre}{\cyrb}{\cyrr}{\cyrery} {\cyrv} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre} {{\CYRP}{\cyro}{\cyrn}{\cyrt}{\cyrr}{\cyrya}{\cyrg}{\cyri}{\cyrn}{\cyra}} $\Pi _1$}, journal = {Matemati\v{c}eskij sbornik}, pages = {575--582}, publisher = {mathdoc}, volume = {126}, number = {4}, year = {1971}, zbl = {0231.46104}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1971__126_4_a4/} }
А.И. Логинов. Полные коммутативные симметричные операторные алгебры в пространстве Понтрягина $\Pi _1$. Matematičeskij sbornik, Tome 126 (1971) no. 4, pp. 575-582. http://geodesic.mathdoc.fr/item/MS_1971__126_4_a4/