%0 Journal Article %A S. K. Pichorides %T A note on the Littlewood-Paley square function inequality %J Colloquium Mathematicum %D 1990 %P 687-691 %V 60 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-2-687-691/ %R 10.4064/cm-60-61-2-687-691 %G en %F 10_4064_cm_60_61_2_687_691