TY - JOUR AU - Jörg Wenzel TI - Ideal norms and trigonometric orthonormal systems JO - Studia Mathematica PY - 1994 SP - 59 EP - 74 VL - 112 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-112-1-59-74/ DO - 10.4064/sm-112-1-59-74 LA - en ID - 10_4064_sm_112_1_59_74 ER -