RIVAS VALLES, Gildardo. The construction of a photoabsorption spectrum using the FEFF 9 package: a detailed procedure. Acta Universitaria, [S. l.], v. 31, p. 1–18, 2021. DOI: 10.15174/au.2021.3214. Disponível em: https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/3214. Acesso em: 6 may. 2026.