SINHA, J. K.; SUNDARAM, S. Study of microwave filters-Part I. Defence Science Journal, [S. l.], v. 12, n. 1, p. 31–47, 2014. DOI: 10.14429/dsj.12.6832. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6832. Acesso em: 15 jun. 2025.