VALOUŠEK, P. A Digital Loudspeaker: Experimental Construction. Acta Polytechnica, [S. l.], v. 46, n. 4, 2006. DOI: 10.14311/858. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/858.. Acesso em: 12 may. 2025.