DIYAB, F.; REDDY, B. S. Some Aspects of Theory of Schrödinger Operators on Riemannian Manifold. Communications in Mathematics and Applications, [S. l.], v. 13, n. 5, p. 1475–1487, 2022. DOI: 10.26713/cma.v13i5.2258. Disponível em: http://www.journals.rgnpublications.com/index.php/cma/article/view/2258. Acesso em: 16 jun. 2025.