%0 Journal Article %A Per Sjölin %T An Hp Inequality for Strongly Singular Integrals. %J Mathematische Zeitschrift %D 1979 %P 231-238 %V 165 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1979__165_172801/ %F MZ_1979__165_172801