Bound State Solutions of the $s$-Wave Klein-Gordon Equation with Position Dependent Mass for Exponential Potential. Journal of Atomic and Molecular Sciences, [S. l.], v. 2, n. 4, p. 360–367, 2011. DOI: 10.4208/jams.012511.030511a. Disponível em: https://global-sci.com/index.php/jams/article/view/15691. Acesso em: 5 dec. 2025.