%0 Journal Article %A I. V. Arzhantsev %T Uniqueness of addition in the Lie algebra $sl_2$ %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2000 %P 49-51 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2000_4_a10/ %G ru %F VMUMM_2000_4_a10