IQBAL, S. J.; HUSSAIN, M. Yousuf; RAMZIA, A. M. S.; AHMAD, H. B. ALL OPTICAL TWO CHANNEL PSK COMMUNICATION. Journal of Research (Science), [S. l.], v. 17, n. 1, p. Pages: 01–07, 2006. Disponível em: http://jorscience.com/index.php/JRS/article/view/227. Acesso em: 15 jul. 2025.