GIRICH, A. A. Left-Handed Metamaterial Based on the Complementary Split-Ring Resonators Tuned with Varactor Diodes. Ukrainian Journal of Physics, [S. l.], v. 62, n. 10, p. 903, 2018. DOI: 10.15407/ujpe62.10.0903. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018624. Acesso em: 16 apr. 2024.