A classification of types of extensions from TOP to QFTOP. - F. H. Khedr; Fathei M. Zeyada (Fuzzy Sets Syst., 1998)

α-continuity and cα-continuity in fuzzifying topology. - F. H. Khedr; Fathei M. Zeyada; Osama Rashed Sayed (Fuzzy Sets Syst., 2000)

On separation axioms in fuzzifying topology. - F. H. Khedr; Fathei M. Zeyada; Osama Rashed Sayed (Fuzzy Sets Syst., 2001)