1. The homotopy continuation method: Numerically implémentable topological procedures;Alexander;Trans. Amer. Math. Soc.,1978
2. Nonlinear Analysis on Manifolds, Monge-Ampère Equations;Aubin,1982
3. A. Bahri, Critical points at infinity in some variational problems, to appear in Pitman Research Notes in Mathematics.
4. On a nonlinear elliptic equation involving the critical Sobolev exponent: The effect of the topology of the domain;Bahri;Comm. Pure Appl. Math.,1988
5. Le spectre d'une variété riemannienne;Berger,1971