@article{IM2_1989_33_3_a2,
     author = {A. B. Korchagin and E. I. Shustin},
     title = {Affine curves of degree~6 and smoothings of a~nondegenerate sixth order singular point},
     journal = {Izvestiya. Mathematics},
     pages = {501--520},
     year = {1989},
     volume = {33},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_33_3_a2/}
}