%0 Journal Article %A Sun, Zhi-Wei %T Unification of zero-sum problems, subset sums and covers of ℤ %J Electronic research announcements of the American Mathematical Society %D 2003 %P 51-60 %V 09 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-03-00111-2/ %R 10.1090/S1079-6762-03-00111-2 %F ERAAMS_2003_09_a6