1. Continua which admit only the identity mapping onto non-degenerate subcontinua;Cook;Fund Math,1966
2. R. Engelking, General Topology, Heldermann 1989.
3. Projective topological spaces;Gleason;Ill J Math,1958
4. L. Gillman and M. Jerison, Rings of Continuous Functions, Springer-Verlag 1976.
5. Minimal Covers of Topological Spaces