KUMAR, A.; PATEL, R.; KARTIKEYAN, M. V. Investigation on Microstrip Filters with CSRR Defected Ground Structure. Advanced Electromagnetics, [S. l.], v. 5, n. 2, p. 28–33, 2016. DOI: 10.7716/aem.v5i2.353. Disponível em: https://www.aemjournal.org/index.php/AEM/article/view/353. Acesso em: 12 feb. 2025.