참고문헌
- J. Auslander, Minimal flows and their extensions, North-Holland, Amsterdam, 1988.
- R. Ellis, Lectures on topological dynamics, Benjamin, New York, 1969.
- S. Glasner, Proximal flows, Springer-Verlag, New York, 1975.
- P.S. Shoenfeld, Regular homomorphisms of minimal sets, Doctoral Dissertation, Univ. of Maryland (1974).