1. On limit cycles in systems of differential equations with a small parameter in the highest derivatives;Anosov;AMS Translations,1963
2. Algebraic aspects of some traveling wave problems;Conley,1977
3. On the existence of bounded progressive wave solutions of the Nagumo equation;Conley,1977
4. Isolated invariant sets and isolating blocks;Conley;Trans. Amer. Math. Soc.,1971
5. Foundations of Modern Analysis;Dieudonne´,1960