T. ABDUL RAHMAN, Z.; T. AHMED, Z. Study of Resonator Properties of Stable and Unstable Lasers. Journal of Education and Science (JES), [S. l.], v. 28, n. 4, p. 240–250, 2019. DOI: 10.33899/edusj.1970.163321. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23267. Acesso em: 6 aug. 2025.