@article{10_4064_ap_65_3_213_222,
     author = {K. Rudol},
     title = {Spectra of subnormal {Hardy} type operators},
     journal = {Annales Polonici Mathematici},
     pages = {213--222},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {1996},
     doi = {10.4064/ap-65-3-213-222},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-65-3-213-222/}
}