An Estimate on Riemannian Manifolds of Dimension 4. Analysis in Theory and Applications, [S. l.], v. 32, n. 3, p. 272–282, 2016. DOI: 10.4208/ata.2016.v32.n3.5. Disponível em: https://global-sci.com/index.php/ata/article/view/8094. Acesso em: 6 dec. 2025.