@article{MAN_1969__181_161840,
     author = {K.H. K\"ORBER},
     title = {Das {Spektrum} der stetigen {Endomorphismen} von .... .},
     journal = {Mathematische Annalen},
     pages = {297--310},
     publisher = {mathdoc},
     volume = {181},
     year = {1969},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__181_161840/}
}