KOHAUPT, L. . An Engineering Boundary Eigenvalue Problem Studied by Functional-Analytic Methods. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 23, p. 11–38, 2024. DOI: 10.24297/jam.v23i.9574. Disponível em: https://www.rajpub.com/index.php/jam/article/view/9574. Acesso em: 25 jun. 2024.