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@article{FAA_1979_13_1_a8, author = {R. I. Bogdanov}, title = {Versal deformations of singular points of vector fields on a plane}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {63--64}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a8/} }
R. I. Bogdanov. Versal deformations of singular points of vector fields on a plane. Funkcionalʹnyj analiz i ego priloženiâ, Tome 13 (1979) no. 1, pp. 63-64. http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a8/