GAO, W.; FARAHANI, M. R. The Theta polynomial Θ(G,x) and the Theta index Θ(G) of molecular graph Polycyclic Aromatic Hydrocarbons PAHk. JOURNAL OF ADVANCES IN CHEMISTRY, [S. l.], v. 12, n. 1, p. 3934–3939, 2015. DOI: 10.24297/jac.v12i1.847. Disponível em: https://rajpub.com/index.php/jac/article/view/847. Acesso em: 23 nov. 2024.