DESIGN AND ANALYSIS OF SOME PARAMETERS FOR CO2 LASER BEAM EXPANDER. Al-Nahrain Journal of Science, [S. l.], v. 11, n. 1, p. 68–73, 2008. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1394. Acesso em: 15 apr. 2025.