Fμ-strongly semiopen sets, Fμ-strong semicontinuity and Fμ-strongly semiretracts. - F. S. Mahmoud; M. A. Fath Alla; M. M. Khalaf (Appl. Math. Comput., 2003)

F-gamma-open sets and F-gamma-continuity in fuzzy bitopological spaces. - F. S. Mahmoud; M. A. Fath Alla; M. M. Khalaf (Appl. Math. Comput., 2004)

Fuzzy Topology On Fuzzy Sets: Fuzzy γ-Continuity and Fuzzy γ-Retracts. - I. M. Hanafy; F. S. Mahmoud; M. M. Khalaf (Int. J. Fuzzy Log. Intell. Syst., 2005)

Intuitionistic Fuzzy Retracts. - I. M. Hanafy; F. S. Mahmoud; M. M. Khalaf (Int. J. Fuzzy Log. Intell. Syst., 2005)