TY - JOUR AU - V. I. Burenkov TI - Formula for the differentiation of operator-valued functions depending on a parameter JO - Matematičeskie zametki PY - 1971 SP - 207 EP - 218 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1971_10_2_a10/ LA - ru ID - MZM_1971_10_2_a10 ER -