%0 Journal Article %A P. I. Lizorkin %T On a theorem of Marcinkiewicz type for $H$-valued functions. A~continual form of the Paley--Littlewood theorem %J Sbornik. Mathematics %D 1972 %P 237-243 %V 16 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1972_16_2_a6/ %G en %F SM_1972_16_2_a6