%0 Journal Article %A Jörg Wenzel %T Ideal norms and trigonometric orthonormal systems %J Studia Mathematica %D 1994 %P 59-74 %V 112 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-112-1-59-74/ %R 10.4064/sm-112-1-59-74 %G en %F 10_4064_sm_112_1_59_74