TY - JOUR AU - Etienne Matheron TI - On the complexity of H sets of the unit circle JO - Colloquium Mathematicum PY - 1996 SP - 1 EP - 5 VL - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-70-1-1-5/ DO - 10.4064/cm-70-1-1-5 LA - en ID - 10_4064_cm_70_1_1_5 ER -