TY - JOUR AU - R. J. Grabovskaya AU - S. G. Krein TI - On the formula for the permutation of functions of operators representing a Lie algebra JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1973 SP - 81 VL - 7 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1973_7_3_a10/ LA - ru ID - FAA_1973_7_3_a10 ER -