Shao Jia-Yu,Gong Fei,Gutman Ivan (2011) New Approaches for the Real and Complex Integral Formulas of the Energy of a Polynomial, MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY, vol. 66, br. 3, str. 849-861 (Article) 

Gutman Ivan,Shao Jia-Yu (2011) The energy change of weighted graphs, LINEAR ALGEBRA AND ITS APPLICATIONS, vol. 435, br. 10, str. 2425-2431 (Article)