A. AL-JUMAILLY, T. Optical Fiber Nonlinearity Estimation Through Four-Wave Mixing. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 23, n. 1, p. 164–169, 2015. DOI: 10.33899/rengj.2015.101048. Disponível em: https://jamh.uomosul.edu.iq/index.php/arej/article/view/31213. Acesso em: 7 sep. 2025.