@article{02186879, title = {Minimum sum and difference covers of abelian groups.}, journal = {Journal of Integer Sequences [electronic only]}, volume = {7}, year = {2004}, zbl = {1068.11016}, language = {en}, url = {http://dml.mathdoc.fr/item/02186879} }
Haanpää, Harri. Minimum sum and difference covers of abelian groups.. Journal of Integer Sequences [electronic only], Tome 7 (2004) . http://gdmltest.u-ga.fr/item/02186879/