UDALCOVS, A.; BOBROVS, V.; IVANOVS, G. Investigation of Allowed Channel Spacing for Differently Modulated Optical Signals in Combined HDWDM Systems. Elektronika ir Elektrotechnika, [S. l.], v. 112, n. 6, p. 19-24, 2011. DOI: 10.5755/j01.eee.112.6.437. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/437. Acesso em: 7 jul. 2022.