Inequalities of Eigenvalues for Uniformly Elliptic Operators with Higher Orders. Journal of Partial Differential Equations, [S. l.], v. 14, n. 4, p. 356–364, 2020. Disponível em: https://global-sci.com/index.php/jpde/article/view/3981. Acesso em: 5 dec. 2025.