1. Foundations of Mechanics;Abraham,1978
2. Stability of Dynamical Systems;Bhatia,1970
3. Stability and Asymptotic Behavior of Differential Equations;Coppel,1965
4. Two remarks on the number of equilibria of an economy;Dierker;Econometrica,1972
5. Topological Methods in Walrasian Economics;Dierker,1974