TY - JOUR AU - J. Loxton TI - On two problems of E. M. Robinson about sums of roots of unity JO - Acta Arithmetica PY - 1974 SP - 159 EP - 174 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-26-2-159-174/ DO - 10.4064/aa-26-2-159-174 LA - en ID - 10_4064_aa_26_2_159_174 ER -