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@article{DE_1976_12_7_a11, author = {O. M. Yudrups}, title = {Comparison of equivalences of dynamical systems on the plane}, journal = {Differencialʹnye uravneni\^a}, pages = {1247--1255}, publisher = {mathdoc}, volume = {12}, number = {7}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_7_a11/} }
O. M. Yudrups. Comparison of equivalences of dynamical systems on the plane. Differencialʹnye uravneniâ, Tome 12 (1976) no. 7, pp. 1247-1255. http://geodesic.mathdoc.fr/item/DE_1976_12_7_a11/