1. A note on semitopological classes;Crossley, S. Gene;Proc. Amer. Math. Soc.,1974
2. S. Gene Crossley and S. K. Hildebrand, Semi-closure, Texas J. Sci. 22 (1971), pp. 99-112.
3. Semi-topological properties;Crossley, S. Gene;Fund. Math.,1972
4. Some remarks on a property of topological cardinal functions;Hajnal, A.;Acta Math. Acad. Sci. Hungar.,1969
5. The property of being a Baire space is semi-topological;Hamlett, T. R.;Math. Chronicle,1976