@article{MASLO_1978_28_3_a12,
     author = {Zajac, Michal},
     title = {Continuity of the spectrum of norm-normal matrices},
     journal = {Mathematica slovaca},
     pages = {317--319},
     year = {1978},
     volume = {28},
     number = {3},
     mrnumber = {535000},
     zbl = {0428.47001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1978_28_3_a12/}
}