TY - JOUR AU - A. B. Nikolov TI - On a complete set of commuting operators for ladder representations of the Lie algebra of JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1971 SP - 365 EP - 379 VL - 9 IS - 3 UR - http://geodesic.mathdoc.fr/item/TMF_1971_9_3_a6/ LA - ru ID - TMF_1971_9_3_a6 ER -