TORRES-SILVA, Hector; HEINRICH, Enrique Fuentes. Parametric Instability in Mathieu Equation for Interaction P-S Waves. International Journal of Advanced Engineering Research and Science, [S. l.], v. 4, n. 3, 2020. Disponível em: https://journal-repository.com/index.php/ijaers/article/view/2803.. Acesso em: 9 apr. 2025.