[1] ANDRIJEVIĆ D.: Some properties of the topology of σ-sets. Mat. Vesnik 36 (1984), 1-10. MR 0880637

[2] BÁNZARU T.: On some properties of multifunctions. (Romanian), Stud. Cerc. Mat. 24 (1972), 1503-1510. MR 0383345

[3] CROSSLEY S. G., HILDEBRAND S. K.: Semi-closure. Texas J. Sci. 22 (1971), 99-112.

[4] DI MAIO G., NOIRI T.: On s-closed spaces. Indian J. Pure Appl. Math. 18 (1987), 226-233. MR 0880176 | Zbl 0625.54031

[5] HASANEIN I. A., LONG P. E., MASHHOUR A. S.: Functions with σ-closed graphs and preclosed graphs. (Reprint).

[6] KOVAČEVIĆ I.: Subsets and paracompactness. Univ. u Novom Sadu Zb. Rad. Prirod.-Mat. Fak. Ser. Mat. 14 (1984), 79-87. MR 0850242 | Zbl 0597.54021

[7] LEVINE N.: Semi-open sets and semi-continuity in topological spaces. Amer. Math. Monthly 70 (1963), 36-41. MR 0166752 | Zbl 0113.16304

[8] MAHESHWARI S. N., JAIN P. C.: Some new mappings. Mathematica (Cluj) 24(47) (1982), 53-55. MR 0692185 | Zbl 0513.54008

[9] MAHESHWARI S. N., THAKUR S. S.: On α-compact spaces. Bull. Inst. Math. Acad. Sinica 13 (1985), 341-347. MR 0866569

[10] MAHESHWARI S. N., TAPI U. D.: Note on some applications on feebly open sets. Madhya Bharati, J. Univ. Saugar, (To appear).

[11] MASHHOUR A. S., ABD EL-MONSEF M. E., EL-DEEB S. N.: On precontinuous and weak precontinuous mappings. Proc. Math. Phys. Soc. Egypt 53 (1982), 47-53. MR 0830896

[12] MASHHOUR A. S., HASANEIN I. A., EL-DEEB S. N.: α-continuous and α-open mappings. Acta Math. Hungar. 41 (1983), 213-218. MR 0703734

[13] ABD EL-MONSEF M. E., EL-DEEB S. N., MAHMOUD R. A.: β-open sets and β-continuous mappings. Bull. Fac. Sci. Assiut Univ. 12 (1983), 77-90. MR 0828081

[14] NEUBRUNN T.: Strongly quasi-continuous multivalued mappings. In: General Topology and its Relations to Modern Analysis and Algebra VI (Prague 1986), Heldermann, Berlin, 1988, pp. 351-359. MR 0952621

[15] NJÅSTAD O.: On some classes of nearly open sets. Pacific J. Math. 15 (1965), 961-970. MR 0195040 | Zbl 0137.41903

[16] NOIRI T.: On semi-continuous mappings. Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Natur. (8) 54 (1973), 210-214. MR 0350686 | Zbl 0275.54010

[17] NOIRI T.: A note on semi-continuous mappings. Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Natur. (8) 55 (1973), 400-403. MR 0367897

[18] NOIRI T.: A function which preserves connected spaces. Časopis Pěst. Mat. 107 (1982), 393-396. MR 0683820 | Zbl 0511.54008

[19] NOIRI T.: On α-continuous functions. Časopis Pěst. Mat. 109 (1984), 118-126. MR 0744869

[20] NOIRI T., DI MAIO G.: Properties of α-compact spaces. In: Third National Conference on Topology (Trieste, 1986) (Italian), Rend. Circ. Mat. Palermo (2) Suppl. 18 (1988), 359-369. MR 0958747

[21] NOIRI T., POPA V.: On upper and lower β-continuous multifunctions. (Preparing).

[22] POPA V.: Weakly continuous multifunctions. Boll. Un. Mat. Ital. A (5) 15 (1978), 379-388. MR 0514990 | Zbl 0391.54010

[23] POPA V.: On characterizations of feebly continuous functions. Mathematica (Cluj) 27(52) (1985), 167-170. MR 0853505 | Zbl 0602.54013

[24] POPA V.: Sur certaines formes faibles de continuity pour les multifonctions. Rev. Roumaine Math. Pures Appl. 30 (1985), 539-546. MR 0826235

[25] POPA V.: Some properties of H-almost continuous multifunctions. Problemy Mat. 10 (1988), 9-26. MR 1068292

[26] REILLY I. L., VAMANAMURTHY M. K.: Connectedness and strong semi-continuity. Časopis Pěst. Mat. 109 (1984), 261-265. MR 0755590 | Zbl 0553.54005

[27] WINE J. D.: Locally paracompact spaces. Glasnik Mat. 10(30) (1975), 351-357. MR 0410666 | Zbl 0312.54027