Gao W, Li Y, Peng J, Sun F. On Subsequence Sums of a Zero-sum Free Sequence II. Electron. J. Combin. [Internet]. 2008Sep.15 [cited 2026Mar.28];15(1):R117. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v15i1r117