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@article{DE_1980_16_12_a21, author = {A. P. Sadovskii}, title = {An elementary proof and applications of a theorem of {F.~Takens}}, journal = {Differencialʹnye uravneni\^a}, pages = {2284--2287}, publisher = {mathdoc}, volume = {16}, number = {12}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_12_a21/} }
A. P. Sadovskii. An elementary proof and applications of a theorem of F.~Takens. Differencialʹnye uravneniâ, Tome 16 (1980) no. 12, pp. 2284-2287. http://geodesic.mathdoc.fr/item/DE_1980_16_12_a21/