%0 Journal Article %A Henry Helson %T Structure of Blaschke cocycles %J Studia Mathematica %D 1972 %P 493-500 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-44-5-493-500/ %R 10.4064/sm-44-5-493-500 %G en %F 10_4064_sm_44_5_493_500