RAMOS, Denilson; POMPOLI, Francesco; GODINHO, Luis; AMADO-MENDES, Paulo; MAREZE, Paulo. The acoustical design and modelling of a subwavelength hexag-onal acoustic metamaterial for multipurpose use and potential building applications. Rivista Italiana di Acustica - Open Access, [S. l.], 2026. DOI: 10.3280/ria2026oa22128. Disponível em: https://journals.francoangeli.it/index.php/ria/article/view/22128. Acesso em: 9 giu. 2026.