%0 Journal Article %A Stanić, Zoran %T Main eigenvalues of real symmetric matrices with application to signed graphs %J Czechoslovak Mathematical Journal %D 2020 %P 1091-1102 %V 70 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0147-19/ %R 10.21136/CMJ.2020.0147-19 %G en %F 10_21136_CMJ_2020_0147_19