SZCZEPAŃSKI, Grzegorz; PODLEŚNA, Marlena; MORZYŃSKI, Leszek; WŁUDARCZYK, Anna. Investigation of the Acoustic Properties of a Metamaterial with a Multi-Ring Structure. Archives of Acoustics, [S. l.], v. 48, n. 4, p. 497–507, 2023. DOI: 10.24425/aoa.2023.146814. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3757. Acesso em: 26 apr. 2025.