SINKEVICIUS, V.; VIRZONIS, D.; SUMSKIENE, L.; JUKNA, T. Cathode Positioning System for Multiple Beam Electron Gun. Elektronika ir Elektrotechnika, [S. l.], v. 69, n. 5, p. 21–24, 2006. DOI: 10.5755/j02.eie.10668. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10668.. Acesso em: 4 may. 2026.