҆TARAS, S.; BUROKAS, T. Model and Properties of the Quasi-Symmetrical Helical Deflection System. Elektronika ir Elektrotechnika, [S. l.], v. 66, n. 2, p. 68-73, 2006. Dispon√≠vel em: https://eejournal.ktu.lt/index.php/elt/article/view/10598. Acesso em: 30 sep. 2022.