%0 Journal Article %A Artūras Dubickas %A Andrius Stankevičius %T Sumsets without powerful numbers %J Acta Arithmetica %D 2007 %P 381-387 %V 130 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa130-4-7/ %R 10.4064/aa130-4-7 %G en %F 10_4064_aa130_4_7