Investigation of Classical Systems with Complex Energy in the Field of Quantum-Classical Correspondence. Global Journal of Science Frontier Research, [S. l.], v. 18, n. A3, p. 29–34, 2018. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/2200. Acesso em: 14 aug. 2026.