@article{10_21136_CMJ_1962_100540,
     author = {Fiedler, Miroslav and Pt\'ak, Vlastimil},
     title = {Generalized norms of matrices and the location of the spectrum},
     journal = {Czechoslovak Mathematical Journal},
     pages = {558--571},
     publisher = {mathdoc},
     volume = {12},
     number = {4},
     year = {1962},
     doi = {10.21136/CMJ.1962.100540},
     mrnumber = {0146667},
     zbl = {0116.25302},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1962.100540/}
}