@article{RM_1971_26_3_a13,
     author = {Yu. S. Kolesov},
     title = {Properties of characteristic polynomials of matrices with non-negative elements},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1971_26_3_a13/}
}