TY - JOUR AU - Zhi Sun TI - Covering the integers by arithmetic sequences JO - Acta Arithmetica PY - 1995 SP - 109 EP - 129 VL - 72 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-72-2-109-129/ DO - 10.4064/aa-72-2-109-129 LA - en ID - 10_4064_aa_72_2_109_129 ER -