%0 Journal Article %A Yu. B. Ermolaev %T On the question of the existence of simple Lie algebras with graduation of a~fairly large length %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1981 %P 66-69 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1981_10_a13/ %G ru %F IVM_1981_10_a13