Electron Impact Double Ionisation of Lanthenum (La++): Extension of Binary Encounter Approximation to La++ Ion. Journal of Advances and Scholarly Researches in Allied Education, [S. l.], v. 15, n. 7, p. 685–687, 2018. Disponível em: https://www.ignited.in/index.php/jasrae/article/view/8768. Acesso em: 13 june. 2026.