Comments on some versions of intuitionistic fuzzy propositional calculus due to K. Atanassov and G. Gargov. - K. M. Abd El-Hakeim; Fathei M. Zeyada (Fuzzy Sets Syst., 2000)

Fuzzy weak totally semicontinuous and fuzzy weak totally precontinuous mappings. - K. M. Abd El-Hakeim (Fuzzy Sets Syst., 2001)

pre-Continuity and D(c, p)-continuity in fuzzifying topology. - K. M. Abd El-Hakeim; Fathei M. Zeyada; Osama Rashed Sayed (Fuzzy Sets Syst., 2001)