SELÉNYI, E.; GAZSI , L. TOLERANZPRÜFUNG AKTIVER RC-FILTER IN DOPPEL-T-SCHALTUNG Periodica Polytechnica Electrical Engineering, [S. l.], v. 13, n. 3, p. 181–203, 1969. Disponível em: https://pp.bme.hu/ee/article/view/5140. Acesso em: 20 jul. 2025.