TY - JOUR AU - A. P. Khromov TI - Differentiation operator and series of Dirichlet type JO - Matematičeskie zametki PY - 1969 SP - 759 EP - 766 VL - 6 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1969_6_6_a11/ LA - ru ID - MZM_1969_6_6_a11 ER -