Shanshal, Muthana Abduljabbar, and Qhatan Adnan Yusuf. “C-C and C-H Bond Cleavage Reactions in the Chrysene and Perylene Aromatic Molecules: An Ab-Initio Density Functional Theory Study”. European Journal of Chemistry, vol. 8, no. 3, Sept. 2017, pp. 288-92, doi:10.5155/eurjchem.8.3.288-292.1561.