%0 Journal Article %A Péter Csikvári %T Subset sums avoiding quadratic nonresidues %J Acta Arithmetica %D 2008 %P 91-98 %V 135 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa135-1-6/ %R 10.4064/aa135-1-6 %G en %F 10_4064_aa135_1_6