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@article{MS_1954__76_2_a2, author = {{\CYRA}.{\CYRA}. {\CYRSH}{\cyrn}{\cyre}{\cyrishrt}{\cyrd}{\cyre}{\cyrr}}, title = {{\CYRO} {\cyrm}{\cyrn}{\cyro}{\cyrzh}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyra}{\cyrh}, {\cyrya}{\cyrv}{\cyrl}{\cyrya}{\cyryu}{\cyrshch}{\cyri}{\cyrh}{\cyrs}{\cyrya} {\cyro}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre}{\cyrm} $H$-{\cyrm}{\cyrn}{\cyro}{\cyrzh}{\cyre}{\cyrs}{\cyrt}{\cyrv}}, journal = {Matemati\v{c}eskij sbornik}, pages = {249--258}, publisher = {mathdoc}, volume = {76}, number = {2}, year = {1954}, zbl = {0055.28301}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1954__76_2_a2/} }
А.А. Шнейдер. О множествах, являющихся обобщением $H$-множеств. Matematičeskij sbornik, Tome 76 (1954) no. 2, pp. 249-258. http://geodesic.mathdoc.fr/item/MS_1954__76_2_a2/