Shmuel Friedland, Leonid Gurvits. An Upper Bound for the Real Part of Nonmaximal Eigenvalues of Nonnegative Irreducible Matrices. SIAM J. Matrix Analysis Applications, 15(3):1015-1017, July 1994. [doi]
@article{FriedlandG94,
title = {An Upper Bound for the Real Part of Nonmaximal Eigenvalues of Nonnegative Irreducible Matrices},
author = {Shmuel Friedland and Leonid Gurvits},
year = {1994},
month = {July},
doi = {10.1137/s0895479892228912},
url = {https://doi.org/10.1137/s0895479892228912},
researchr = {https://researchr.org/publication/FriedlandG94},
cites = {0},
citedby = {0},
journal = {SIAM J. Matrix Analysis Applications},
volume = {15},
number = {3},
pages = {1015-1017},
}