TY - JOUR AU - N. N. Shapovalov TI - On a bilinear form on the universal enveloping algebra of a complex semisimple Lie algebra JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1972 SP - 65 EP - 70 VL - 6 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1972_6_4_a6/ LA - ru ID - FAA_1972_6_4_a6 ER -