1. Vector fields on spheres;Adams, John Frank;Ann. of Math. (2),1962
2. Existence and uniqueness theorems for the solution of an inverse problem for the transfer equation;Amirov, Arif;Sibirsk. Mat. Zh.,1986
3. Geodesic flows on closed Riemannian manifolds of negative curvature;Anosov, Dmitri Viktorovitch;Trudy Mat. Inst. Steklov.,1967
4. Generalized vector cross products and Killing forms on negatively curved manifolds;Barberis, María Laura;Geom. Dedicata,2020
5. Pincement riemannien et pincement holomorphe;Berger, Marcel;Ann. Scuola Norm. Sup. Pisa Cl. Sci. (3),1960