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@article{MS_1982__159_4_a7, author = {{\CYRV}.{\CYRT}. {\CYRF}{\cyro}{\cyrm}{\cyre}{\cyrn}{\cyrk}{\cyro}}, title = {{\CYRO} {Sigma-{\cyrr}{\cyre}{\cyra}{\cyrl}{\cyri}{\cyrz}{\cyra}{\cyrc}{\cyri}{\cyrya}{\cyrh}} {\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrk} {\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrzh}{\cyri}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrishrt} {\cyrk}{\cyrr}{\cyri}{\cyrv}{\cyri}{\cyrz}{\cyrn}{\cyrery}}, journal = {Matemati\v{c}eskij sbornik}, pages = {523--533}, publisher = {mathdoc}, volume = {159}, number = {4}, year = {1982}, zbl = {0513.53053}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1982__159_4_a7/} }
В.Т. Фоменко. О Sigma-реализациях метрик положительной кривизны. Matematičeskij sbornik, Tome 159 (1982) no. 4, pp. 523-533. http://geodesic.mathdoc.fr/item/MS_1982__159_4_a7/