1. The compactness of countably compact spaces;Bacon;Pac. J. Math.,1969
2. On E-compact spaces;Blefko,1965
3. On E-compact spaces;Engelking;Bull. Acad. Pol. Sci. Ser. Sci. Math. Astr. Phys.,1958
4. The topological product of countably compact spaces;Frolik;Czech. Math. J.,1960
5. Generalizations of the Gδ-property of complete metric spaces;Frolik;Czech. Math. J.,1960