AFONIN, L. I.; LASHCHENKO, V. I. Three Signal Coaxial Converter. Elektronika ir Elektrotechnika, [S. l.], v. 22, n. 4, 1999. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/16562.. Acesso em: 23 jan. 2026.