%0 Journal Article %A S. Pichorides %T On the best values of the constants in the theorem of M. Riesz, Zygmund and Kolmogorov %J Studia Mathematica %D 1972 %P 165-179 %V 44 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-44-2-165-179/ %R 10.4064/sm-44-2-165-179 %G en %F 10_4064_sm_44_2_165_179