@article{MZM_1995_58_4_a14,
     author = {Yu. A. Alpin},
     title = {Bounds for the {Perron} root of a~nonnegative matrix involving the properties of its graph},
     journal = {Matemati\v{c}eskie zametki},
     pages = {635--637},
     publisher = {mathdoc},
     volume = {58},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_58_4_a14/}
}