QUINTANILLA, R.; RACKE, R. Addendum to: Qualitative aspects of solutions in resonators. Archives of Mechanics, Warsaw, Poland, v. 63, n. 4, p. 429–435, 2011. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v63p429. Acesso em: 19 nov. 2025.