Properties of Helical Structures Containing Periodical Inhomogeneities. Elektronika ir Elektrotechnika, [S. l.], v. 99, n. 3, p. 49–52, 2010. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/9904.. Acesso em: 5 dec. 2025.