BOBROVS, V.; IVANOVS, G. Investigation of Minimal Channel Spacing in HDWDM Systems. Elektronika ir Elektrotechnika, [S. l.], v. 92, n. 4, p. 53-56, 2009. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10238. Acesso em: 27 sep. 2022.