“Using Gaussian Basis-Sets with Gaussian Nuclear Charge Distribution to Solve Dirac-Hartree-Fock Equation for 83Bi-Atom”, ANJS, vol. 19, no. 3, pp. 70–76, May 2018, Accessed: Nov. 22, 2024. [Online]. Available: https://mail.anjs.edu.iq/index.php/anjs/article/view/207