%0 Journal Article %A B. V. Loginov %A Yu. B. Rousak %A L. R. Kim-Tyan %T Normal forms of the degenerate differential autonomous and non autonomous equations with the maximal Jordan chain of length two and~three %J The Bulletin of Irkutsk State University. Series Mathematics %D 2015 %P 58-71 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2015_12_a5/ %G ru %F IIGUM_2015_12_a5