@article{ADM_2021_32_1_a0,
     author = {K. Attas and A. Boussa{\"\i}ri and M. Zaidi},
     title = {About the spectra of a real nonnegative matrix and its signings},
     journal = {Algebra and discrete mathematics},
     pages = {1--8},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2021_32_1_a0/}
}