ACOSTA, César R..
 Restricted Closed Shell Hartree Fock Roothaan Matrix Method Applied to Helium Atom using Mathematica.
<strong>European Journal of Physics Education</strong>, [S.l.], v. 5, n. 1, p. 1-14, feb. 2017.
ISSN 1309-7202.
Available at: &lt;<a href="https://eu-journal.org/index.php/EJPE/article/view/58" target="_new">https://eu-journal.org/index.php/EJPE/article/view/58</a>&gt;. Date accessed: 26 apr. 2024.
doi: <a href="https://doi.org/10.20308/ejpe.v5i1.58">https://doi.org/10.20308/ejpe.v5i1.58</a>.