[1] BANDYOPADHYAY C.: Studies on some structuгe and mapping in topological spaces. Ph. D. Thesis (Chapteг 1, 15-19) 1980, Buгdwan Univeгsity.
[2] BANERJEE N. D., BANDYOPADNYAY C.:
Semi-closed sets and the associated topology. Math. Slovaca 33, 1983, 225-229.
MR 0699092
[3] CROSSLEY S. G., HILDEBRAND S. K.: Semi-closure. Texas J. Sci. 22 (2 + 3), 1971, 99-112.
[4] CROSSLEY S. G., HILDEBRANS S. K.:
Semi-topological propeгties. Fundamenta Mathematicae 74, 1972, 233-257.
MR 0301690
[5] LEVINE N. L.:
Semi-open sets and semi-continuity in topological spaces. Amer. Math. Monthly 70, 1963, 36-41.
MR 0166752 |
Zbl 0113.16304
[6] SIMMONS G. F.: Introduction to Topology and Modeгn Analysis. McGгaw-Hill Kogakusha, International Student edition, 1963.