@article{10_21136_CMJ_2020_0147_19, author = {Stani\'c, Zoran}, title = {Main eigenvalues of real symmetric matrices with application to signed graphs}, journal = {Czechoslovak Mathematical Journal}, pages = {1091--1102}, publisher = {mathdoc}, volume = {70}, number = {4}, year = {2020}, doi = {10.21136/CMJ.2020.0147-19}, mrnumber = {4181798}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0147-19/} }