Evaluation of the electron correlation for lithium atom (Li) in ground state. Baghdad Science Journal, Iraq, Baghdad, v. 6, n. 1, p. 61–66, 2009. DOI: 10.21123/bsj.2009.6.1.61-66. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/957.. Acesso em: 23 jul. 2024.