Minimal Hypersurfaces of a Positive Scalar Curvature Manifold. Sebastiao Almeida — 1985 Mathematische Zeitschrift
The geometry of closed hypersurfaces Sebastião de Almeida; Fabiano Brito Séminaire de théorie spectrale et géométrie
Closed hypersurfaces of S 4 with two constant symmetric curvatures Sebastião Carneiro de Almeida; Fabiano Gustavo Braga Brito — 1997 Annales de la Faculté des sciences de Toulouse : Mathématiques