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@article{MI_1971__6_2_189087, author = {{\CYRB}.{\CYRR}. {\CYRF}{\cyrr}{\cyre}{\cyrn}{\cyrk}{\cyri}{\cyrn}}, title = {{\CYRO} {\cyrp}{\cyrr}{\cyri}{\cyrv}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyri} {\cyrs}{\cyrv}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrv} {\cyrn}{\cyre}{\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyrery}{\cyrh} {\cyrk}{\cyrl}{\cyra}{\cyrs}{\cyrs}{\cyra}{\cyrh} $n$- {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyro}{\cyri}{\cyrd}{\cyro}{\cyrv}. {I}}, journal = {Matemati\v{c}eskie issledovani\^a}, pages = {122--137}, publisher = {mathdoc}, volume = {6}, number = {2}, year = {1971}, zbl = {0241.20066}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MI_1971__6_2_189087/} }
Б.Р. Френкин. О приводимости и сводимости в некоторых классах $n$- группоидов. I. Matematičeskie issledovaniâ, Tome 6 (1971) no. 2, pp. 122-137. http://geodesic.mathdoc.fr/item/MI_1971__6_2_189087/