On subsequence sums of a zero-sum free sequence. Sun, Fang — 2007 The Electronic Journal of Combinatorics [electronic only]
Subsums of a zero-sum free subset of an abelian group. Gao, Weidong; Li, Yuanlin; Peng, Jiangtao; Sun, Fang — 2008 The Electronic Journal of Combinatorics [electronic only]
On subsequence sums of a zero-sum free sequence. II. Gao, Weidong; Li, Yuanlin; Peng, Jiangtao; Sun, Fang — 2008 The Electronic Journal of Combinatorics [electronic only]