M. AL-SHEIKH, A.; S. HAMEED, K. Theoretical Study of Energy Gap for Silicon and Germanium Under High Pressure. Rafidain Journal of Science, [S. l.], v. 22, n. 3, p. 58–68, 2011. DOI: 10.33899/rjs.2011.31189. Disponível em: https://jamh.uomosul.edu.iq/index.php/rsci/article/view/47412. Acesso em: 28 sep. 2025.