TY - JOUR AU - G. A. Popov TI - Distribution of the values of an additive function in a progression JO - Doklady Akademii Nauk PY - 1971 SP - 290 EP - 293 VL - 200 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_200_2_a10/ LA - ru ID - DAN_1971_200_2_a10 ER -