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@article{MS_1972__131_3_a3, author = {{\CYRV}.{\CYRV}. {\CYRF}{\cyre}{\cyrd}{\cyro}{\cyrr}{\cyrch}{\cyru}{\cyrk}}, title = {{\CYRO}{\cyrb} $H$-{\cyrz}{\cyra}{\cyrm}{\cyrk}{\cyrn}{\cyru}{\cyrt}{\cyrery}{\cyrh} {\cyrr}{\cyra}{\cyrs}{\cyrsh}{\cyri}{\cyrr}{\cyre}{\cyrn}{\cyri}{\cyrya}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv} $\ensuremath{\theta}$-{\cyrb}{\cyrl}{\cyri}{\cyrz}{\cyro}{\cyrs}{\cyrt}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {400--418}, publisher = {mathdoc}, volume = {131}, number = {3}, year = {1972}, zbl = {0253.54022}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1972__131_3_a3/} }
В.В. Федорчук. Об $H$-замкнутых расширениях пространств $θ$-близости. Matematičeskij sbornik, Tome 131 (1972) no. 3, pp. 400-418. http://geodesic.mathdoc.fr/item/MS_1972__131_3_a3/