%0 Journal Article %A K. Rudol %T Spectra of subnormal Hardy type operators %J Annales Polonici Mathematici %D 1996 %P 213-222 %V 65 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-65-3-213-222/ %R 10.4064/ap-65-3-213-222 %G en %F 10_4064_ap_65_3_213_222