@article{IM_1966__1_141827,
     author = {I. LIEB},
     title = {\"Uber komplexe {R\"aume} und komplexe {Spektren.}},
     journal = {Inventiones mathematicae},
     pages = {45--58},
     publisher = {mathdoc},
     volume = {1},
     year = {1966},
     zbl = {0138.06801},
     url = {http://geodesic.mathdoc.fr/item/IM_1966__1_141827/}
}