WADHWA, L. K.; RAO, H. S. One operational amplifier simulates third order systems with a lead and a time-constant. Defence Science Journal, [S. l.], v. 14, n. 4, p. 315–322, 2014. DOI: 10.14429/dsj.14.7178. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7178. Acesso em: 17 jun. 2025.