VALENTIN, M.; ELCHEIKH, R. E. Investigations on dielectric resonators for applications below 1 GHz. Archives of Acoustics, [S. l.], v. 16, n. 1, p. 127–136, 2014. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1216. Acesso em: 25 apr. 2025.