@article{IIGUM_2015_12_a5,
     author = {B. V. Loginov and Yu. B. Rousak and L. R. Kim-Tyan},
     title = {Normal forms of the degenerate differential autonomous and non autonomous equations with the maximal {Jordan} chain of length two and~three},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {58--71},
     year = {2015},
     volume = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2015_12_a5/}
}