%0 Journal Article %A Qing-Hu Hou %A Zhi-Wei Sun %T Restricted sums in a field %J Acta Arithmetica %D 2002 %P 239-249 %V 102 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa102-3-3/ %R 10.4064/aa102-3-3 %G en %F 10_4064_aa102_3_3