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@article{MS_1950__68_2_a3, author = {{\CYRL}.{\CYREREV}. {\CYREREV}{\cyrl}{\cyrsftsn}{\cyrs}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrc}}, title = {{\CYRO}{\cyrc}{\cyre}{\cyrn}{\cyrk}{\cyra} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyra} {\cyro}{\cyrs}{\cyro}{\cyrb}{\cyrery}{\cyrh} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {\cyrd}{\cyri}{\cyrn}{\cyra}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyrery}, {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrn}{\cyrn}{\cyro}{\cyrishrt} {\cyrn}{\cyra} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyri}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {215--224}, publisher = {mathdoc}, volume = {68}, number = {2}, year = {1950}, zbl = {0041.22501}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1950__68_2_a3/} }
Л.Э. Эльсгольц. Оценка числа особых точек динамической системы, заданной на многообразии. Matematičeskij sbornik, Tome 68 (1950) no. 2, pp. 215-224. http://geodesic.mathdoc.fr/item/MS_1950__68_2_a3/