NGUYEN, Doan Tuan; SI, Duc Quang. On the Relation between Curvature, Diameter, and Volume of a Complete Riemannian Manifold. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 11, p. 1576–1583, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3867. Acesso em: 6 dec. 2025.