TY - JOUR AU - Zhi-Wei Sun TI - Restricted sums of subsets of $\Bbb Z$ JO - Acta Arithmetica PY - 2001 SP - 41 EP - 60 VL - 99 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa99-1-4/ DO - 10.4064/aa99-1-4 LA - en ID - 10_4064_aa99_1_4 ER -