@article{10_21136_CMJ_1960_100402,
     author = {Ma\v{r}{\'\i}k, Jan and Pt\'ak, Vlastimil},
     title = {Norms, spectra and combinatorial properties of matrices},
     journal = {Czechoslovak Mathematical Journal},
     pages = {181--196},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1960},
     doi = {10.21136/CMJ.1960.100402},
     mrnumber = {0120243},
     zbl = {0093.24205},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1960.100402/}
}