Covering a Finite Abelian Group by Subset Sums.

Weidong Gao Yahya Ould Hamidoune Anna S. Lladó Oriol Serra Covering a Finite Abelian Group by Subset Sums. 599-611 2003 23 Combinatorica 4 http://www.springerlink.com/index/10.1007/s00493-003-0036-x db/journals/combinatorica/combinatorica23.html#GaoHLS03