@article{NUMA_1967__10_131777,
     author = {G. Loizou},
     title = {Bounds for the {Inequality} of {Wielandt.}},
     journal = {Numerische Mathematik},
     pages = {142--146},
     publisher = {mathdoc},
     volume = {10},
     year = {1967},
     zbl = {0158.03505},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1967__10_131777/}
}