%0 Journal Article %A A. N. Leznov %T Graded Lie algebras, representation theory, integrable mappings, and integrable systems %J Teoretičeskaâ i matematičeskaâ fizika %D 2000 %P 251-271 %V 122 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2000_122_2_a8/ %G ru %F TMF_2000_122_2_a8