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@article{MS_1972__129_2_a5, author = {{\CYRO}.{\CYRYA}. {\CYRV}{\cyri}{\cyrr}{\cyro}}, title = {{\CYRZ}{\cyra}{\cyrc}{\cyre}{\cyrp}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrya}, {\cyrd}{\cyrv}{\cyru}{\cyrl}{\cyri}{\cyrs}{\cyrt}{\cyrn}{\cyrery}{\cyre} {\cyrr}{\cyra}{\cyrz}{\cyrv}{\cyre}{\cyrt}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrn}{\cyra}{\cyrk}{\cyrr}{\cyrery}{\cyrt}{\cyri}{\cyrya} {\cyri} {\cyrk}{\cyro}{\cyrs}{\cyrery}}, journal = {Matemati\v{c}eskij sbornik}, pages = {216--228}, publisher = {mathdoc}, volume = {129}, number = {2}, year = {1972}, zbl = {0232.55001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1972__129_2_a5/} }
О.Я. Виро. Зацепления, двулистные разветвленные накрытия и косы. Matematičeskij sbornik, Tome 129 (1972) no. 2, pp. 216-228. http://geodesic.mathdoc.fr/item/MS_1972__129_2_a5/