GNANASEKARAN, S.; SAMPATH KRISHNAN, S.; GNANASEKARAN, P.; RAMAMURTHI, K. Third, Fourth and Fifth Order Vibrational Problems by the Method of Isotani . Asian Journal of Chemistry, [S. l.], v. 5, n. 4, p. 965–970, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/24959. Acesso em: 3 apr. 2025.