ANALYSIS OF ACOUSTIC WAVEGUIDE THROUGH THE ENERGY SPECTRAL ELEMENT METHOD INCLUDING PARAMETERS UNCERTAINTY. Revista Interdisciplinar de Pesquisa em Engenharia, [S. l.], v. 2, n. 16, p. 116–129, 2017. DOI: 10.26512/ripe.v2i16.21621. Disponível em: https://periodicostestes.bce.unb.br/index.php/ripe/article/view/21621. Acesso em: 7 jan. 2026.