TY - JOUR AU - Yu. B. Ermolaev TI - On the question of the existence of simple Lie algebras with graduation of a~fairly large length JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1981 SP - 66 EP - 69 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1981_10_a13/ LA - ru ID - IVM_1981_10_a13 ER -