@article{10_21136_CMJ_1966_100730,
     author = {Schwarz, \v{S}tefan},
     title = {New kinds of theorems on non-negative matrices},
     journal = {Czechoslovak Mathematical Journal},
     pages = {285--295},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1966},
     doi = {10.21136/CMJ.1966.100730},
     mrnumber = {0201453},
     zbl = {0232.20141},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1966.100730/}
}