References
1. E. van Douwen, The Pixley-Roy topology on spaces of subsets, in: Set-theoretic Topology, Academic Press, 1977.
2. J.S. Ochan, Space of subsets of a topological space, Dokl. Akad. Nauk SSSR 32 (1941), 107-109.
3. J.S. Ochan, Space of subsets of a topological space (in Russian), Mat. Sb. 12 (1943), 340-352.
4. C. Pixley, P. Roy, Uncompletable Moore spaces, in: Proceeding of the Auburn Topology Conference, 1969.
5. Sz. Plewik, On subspaces of the Pixley-Roy example, Colloq. Math. 44 (1981), 41-46.
6. T. Przymusiński, Normality and paracompactness of Pixley-Roy hyperspaces, Fund. Math. 113 (1981), 201-219.
Google Scholar