%0 Journal Article %A Stewart, C. L. %A Tijdeman, R. %T On Infinite-Difference Sets %J Canadian journal of mathematics %D 1979 %P 897-910 %V 31 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-085-6/ %R 10.4153/CJM-1979-085-6 %F 10_4153_CJM_1979_085_6