PUSTKA, Martin; PŮST, Ladislav. Spectral Properties of Circular Piezoelectric Unimorphs. Archives of Acoustics, [S. l.], v. 42, n. 4, p. 743–751, 2017. DOI: 10.1515/aoa-2017-0077. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1821. Acesso em: 25 apr. 2025.