MAIRECHE, A. A New Approach to the Approximate Analytic Solution of the Three-Dimensional Schrӧdinger Equation for Hydrogenic and Neutral Atoms in the Generalized Hellmann Potential Model. Ukrainian Journal of Physics, [S. l.], v. 65, n. 11, p. 987, 2020. DOI: 10.15407/ujpe65.11.987. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019498. Acesso em: 16 aug. 2022.