SIMULIK, V. M.; ZAJAC, T. M.; TYMCHYK, R. V. Choice of the Wave Function for the Helium Ground State for Precision Calculations of Quasistationary State Parameters. Ukrainian Journal of Physics, [S. l.], v. 61, n. 11, p. 950, 2019. DOI: 10.15407/ujpe61.11.0950. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019009. Acesso em: 29 mar. 2024.