ETIM, E. E.; OKO, G. E.; ONEN, A. I.; USHIE, O. A.; ANDREW, C.; LAWAL, U.; KHANAL, G. P. Computational Studies of Sulphur Trioxide (SO3) and its Protonated Analogues. Journal of Chemical Society of Nigeria, [S. l.], v. 43, n. 2, 2018. Disponível em: http://journals.chemsociety.org.ng/index.php/jcsn/article/view/153. Acesso em: 8 oct. 2025.