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@article{MS_1951__71_2_a4, author = {{\CYRN}.{\CYRYA}. {\CYRV}{\cyri}{\cyrl}{\cyre}{\cyrn}{\cyrk}{\cyri}{\cyrn}}, title = {{\CYRP}{\cyrr}{\cyrya}{\cyrm}{\cyrery}{\cyre} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrc}{\cyri}{\cyri} {\cyrn}{\cyra}{\cyrd} {\cyrt}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrg}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrm}{\cyri} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyra}{\cyrm}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {371--402}, publisher = {mathdoc}, volume = {71}, number = {2}, year = {1951}, zbl = {0044.26001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1951__71_2_a4/} }
Н.Я. Виленкин. Прямые операции над топологическими группами. Matematičeskij sbornik, Tome 71 (1951) no. 2, pp. 371-402. http://geodesic.mathdoc.fr/item/MS_1951__71_2_a4/