Design of Quasi-elliptic Filters with Specified Q-factor Parameter. Elektronika ir Elektrotechnika, [S. l.], v. 105, n. 9, p. 77–80, 2010. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/9182.. Acesso em: 5 dec. 2025.