YASSIR, A .K.; HUSSAIN, A. H.; ALI, F. A. Elastic Scattering of Electron and Positron by Radium and Radon Atoms. Journal of Kufa-Physics, Kufa, Najaf, IRAQ, v. 13, n. 01, p. 1–11, 2021. DOI: 10.31257/2018/JKP/2021/130101. Disponível em: https://journal.uokufa.edu.iq/index.php/jkp/article/view/7434. Acesso em: 4 nov. 2026.