[1]
“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”, Ukr. J. Phys., vol. 65, no. 11, p. 987, Nov. 2020, doi: 10.15407/ujpe65.11.987.