TY - JOUR AU - Henry Helson TI - On a theorem of F. and M. Riesz JO - Colloquium Mathematicum PY - 1954 SP - 113 EP - 117 VL - 3 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-3-2-113-117/ DO - 10.4064/cm-3-2-113-117 LA - pl ID - 10_4064_cm_3_2_113_117 ER -