1. General competitive analysis;Arrow,1971
2. Topological spaces;Berge,1963
3. Economies with a finite set of equilibria;Debreu;Econometrica,1970
4. Regular differentiable economies;Debreu;American Economic Review, Papers and Proceedings,1976
5. Two remarks on the number of equilibria of an economy;Dierker;Econometrica,1972