%0 Journal Article %A Julia Brandes %T Sums and differences of power-free numbers %J Acta Arithmetica %D 2015 %P 169-180 %V 169 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa169-2-4/ %R 10.4064/aa169-2-4 %G en %F 10_4064_aa169_2_4