@article{10_4064_ap_58_2_193_199,
     author = {Urban Cegrell},
     title = {On the spectrum of {A(\ensuremath{\Omega})} and $H^\ensuremath{\infty}(\ensuremath{\Omega})$},
     journal = {Annales Polonici Mathematici},
     pages = {193--199},
     publisher = {mathdoc},
     volume = {58},
     number = {2},
     year = {1993},
     doi = {10.4064/ap-58-2-193-199},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-58-2-193-199/}
}