@article{MZ_1973__131_171890,
     author = {Christopher D.H. Cooper},
     title = {On the {Maximum} {Eigenvalue} of a {Reducible} {Non-Negative} {Real} {Matrix.}},
     journal = {Mathematische Zeitschrift},
     pages = {213--218},
     publisher = {mathdoc},
     volume = {131},
     year = {1973},
     zbl = {0261.15006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1973__131_171890/}
}