1. Andrijević D.: Semi-preopen sets. Mat. Vesnik 38, 24–32 (1986)
2. Dontchev J., Noiri T.: Contra-semicontinuous functions. Math. Pannonica 10(2), 159–168 (1999)
3. Garg G.L., Sivaraj D.: Semitopological properties. Mat. Vesnik 36, 137–142 (1984)
4. Garg G.L., Sivaraj D.: Presemiclosed mappings. Periodica Math. Hung 19(2), 97–106 (1988)
5. Hamlett T.R., Rose D.: Local compactness with respect to an ideal. Kyungpook Math. J. 32(1), 31–43 (1992)