TY - JOUR AU - V. S. Popov TI - New expressions for the invariant operators of the unitary groups JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1976 SP - 357 EP - 369 VL - 29 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1976_29_3_a6/ LA - ru ID - TMF_1976_29_3_a6 ER -