%0 Journal Article %A M. V. Babich %T Birational Darboux coordinates on nilpotent coadjoint orbits classical complex Lie groups, Jordan blocks~$2\times2$ %J Zapiski Nauchnykh Seminarov POMI %D 2017 %P 5-12 %V 465 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2017_465_a0/ %G en %F ZNSL_2017_465_a0