de Oliveira, B. G. “Hydrocarbons As Proton Receptors and Evidences of Unconventional and Unusual π···H, P-π···H and C···H Hydrogen Bonds”. Orbital: The Electronic Journal of Chemistry, Vol. 11, no. 3, July 2019, pp. 205-18, https://periodicos.ufms.br/index.php/orbital/article/view/15941.