ZHANG, D.; ZHANG, Z. Sign-changing Solutions for Fourth Order Elliptic Equation with Concave-convex Nonlinearities. Journal of Advances in Applied & Computational Mathematics, [S. l.], v. 11, p. 1–16, 2024. DOI: 10.15377/2409-5761.2024.11.1. Disponível em: https://avantipublishers.com/index.php/jaacm/article/view/1520. Acesso em: 7 nov. 2024.