1. Équations différentielles non linéaires et problème de Yamabe concernant la courbure scalaire;Aubin;J. Math. Pures Appl. (9),1976
2. Some Nonlinear Problems in Riemannian Geometry;Aubin,1998
3. Laplacians and Riemannian submersions with totally geodesic fibres;Bérard-Bergery;Ill. J. Math.,1982
4. Manifolds All of Whose Geodesics Are Closed;Besse,1978
5. Einstein Manifolds Classics in Mathematics;Besse,2008