%0 Journal Article %A J. Loxton %T On two problems of E. M. Robinson about sums of roots of unity %J Acta Arithmetica %D 1974 %P 159-174 %V 26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-26-2-159-174/ %R 10.4064/aa-26-2-159-174 %G en %F 10_4064_aa_26_2_159_174