JANKAUSKAS, Z.; KVEDARAS, V.; ZAVECKAS, V. The Investigation of Helicon Maser. Elektronika ir Elektrotechnika, [S. l.], v. 59, n. 3, 2005. DOI: 10.5755/j02.eie.10399. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10399.. Acesso em: 11 jun. 2026.