1. Graph Theory with Applications;Bondy,1976
2. On incidence energy;Bozkurt;MATCH: Commun. Math. Comput. Chem.,2014
3. R. Brualdi, L. Hogben, B. Shader, AIM Workshop “Spectra of Families of Matrices Described by Graphs, Digraphs, and Sign Patterns”, Final Report: Mathematical Results. http://aimath.org/pastworkshops/matrixspectrumrep.pdf.
4. A decreasing sequence of upper bounds for the Laplacian energy of a tree;Carmona;Linear Algebra Appl.,2014
5. The Laplacian energy of threshold graphs and majorization;Dahl;Linear Algebra Appl.,2015