BOUTEJDAR, A.; BENNANI, S. D. Design and Fabrication of Tri-Stopband Bandstop Filters Using Cascaded and Multi-Armed Methods. Advanced Electromagnetics, [S. l.], v. 6, n. 3, p. 18–24, 2017. DOI: 10.7716/aem.v6i3.524. Disponível em: https://aemjournal.org/index.php/AEM/article/view/524. Acesso em: 29 mar. 2024.