TY - JOUR AU - A. D. Korshunov TI - On the complexity of coverings of numerical sets by arithmetic progressions JO - Diskretnyj analiz i issledovanie operacij PY - 1994 SP - 40 EP - 60 VL - 1 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DA_1994_1_2_a3/ LA - ru ID - DA_1994_1_2_a3 ER -