TY - JOUR AU - J. C. Peral TI - On a sum of Vinogradov JO - Colloquium Mathematicum PY - 1990 SP - 225 EP - 233 VL - 60 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-1-225-233/ DO - 10.4064/cm-60-61-1-225-233 LA - pl ID - 10_4064_cm_60_61_1_225_233 ER -