SILVA RIBEIRO, M. F.; NERY DE OLIVEIRA, L.; DA SILVA, T. F. Poincar´e duality and the existence of exotic structures on n-spheres. Latin American Journal of Mathematics, [S. l.], v. 2, n. 01, p. 58–98, 2023. Disponível em: https://www.lajm.ufscar.br/index.php/capa/article/view/25. Acesso em: 9 may. 2024.