@article{01924323,
title = {A contribution to Collatz's eigenvalue inclusion theorem for nonnegative irreducible matrices.},
journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
volume = {10},
year = {2003},
pages = {31-45},
zbl = {1022.15018},
language = {en},
url = {http://dml.mathdoc.fr/item/01924323}
}
Oepomo, Tedja Santanoe. A contribution to Collatz's eigenvalue inclusion theorem for nonnegative irreducible matrices.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 10 (2003) pp. 31-45. http://gdmltest.u-ga.fr/item/01924323/