1.
Silva Ribeiro MF, Nery de Oliveira L, da Silva TF. Poincaré duality and the existence of exotic structures on n-spheres. LAJM [Internet]. 2023 Aug. 13 [cited 2025 Jul. 1];2(01):58-9. Available from: https://lajm.ufscar.br/index.php/capa/article/view/25