@article{DE_1994_30_8_a18, author = {I. U. Bronshtein and I. V. Nikolaev}, title = {Smooth orbital equivalence in a neighborhood of a singular point on a plane}, journal = {Differencialʹnye uravneni\^a}, pages = {1462--1464}, publisher = {mathdoc}, volume = {30}, number = {8}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1994_30_8_a18/} }