SOTNER, R.; PETRZELA, J.; JERABEK, J.; DOSTAL, T. Reconnection-less OTA-based Biquad Filter with Electronically Reconfigurable Transfers. Elektronika ir Elektrotechnika, [S. l.], v. 21, n. 3, p. 33-37, 2015. DOI: 10.5755/j01.eee.21.3.10205. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10205. Acesso em: 26 sep. 2022.