LANGHAMMER, Lukas; DVORAK, Jan; SOTNER, Roman; JERABEK, Jan. Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter. Elektronika ir Elektrotechnika, [S. l.], v. 23, n. 3, p. 47–54, 2017. DOI: 10.5755/j01.eie.23.3.18332. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/18332.. Acesso em: 22 jan. 2026.