TY - JOUR AU - Richter, David A. TI - -gradations of Lie algebras and infinitesimal generators. JO - Journal of Lie Theory PY - 1999 SP - 113 VL - 9 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/JLT_1999__9_1_229910/ LA - en ID - JLT_1999__9_1_229910 ER -