References
- N. P. Bhatia and G. P. Szego, Dynamical systems : Stability theory and applications, Lecture Notes in Math., Springer Verlag (1976)
- Desberg Li, On dynamical stability in general dynamical systems, J. Math. Anal. Appl. 263 (2001), 455–478
- L. A. Steen and J. A. Seebach, Counterexamples in topology, Holt. Rinehart and Winston. Inc (1970)
- L. A. Steen and J. A. Seebach, Counterexamples in topology, Holt. Rinehart and Winston. Inc (1970)