@article{00952331, title = {Conditions on periodicity for sum-free sets.}, journal = {Experimental Mathematics}, volume = {5}, year = {1996}, pages = {131-137}, doi = {10.1080/10586458.1996.10504584}, zbl = {0871.11013}, language = {en}, url = {http://dml.mathdoc.fr/item/00952331} }
Calkin, Neil J.; Finch, Steven R. Conditions on periodicity for sum-free sets.. Experimental Mathematics, Tome 5 (1996) pp. 131-137. doi : 10.1080/10586458.1996.10504584. http://gdmltest.u-ga.fr/item/00952331/