TY - JOUR AU - D. A. Burgess TI - On character sums and primitive roots JO - Matematika PY - 1963 SP - 3 EP - 16 VL - 7 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAT_1963_7_4_a0/ LA - ru ID - MAT_1963_7_4_a0 ER -