%0 Journal Article %A Ferenc Móricz %T Multiple conjugate functions and multiplicative Lipschitz classes %J Colloquium Mathematicum %D 2009 %P 21-32 %V 115 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm115-1-3/ %R 10.4064/cm115-1-3 %G en %F 10_4064_cm115_1_3