On fuzzy bitopological spaces. - Ali Kandil; A. A. Nouh; Sobhy A. El-Sheikh (Fuzzy Sets Syst., 1995)

On separation axioms in fuzzy bitopological spaces. - A. A. Nouh (Fuzzy Sets Syst., 1996)

Operations and its applications on L-fuzzy bitopological spaces: Part I. - Ali Kandil; A. S. Abd-Allah; A. A. Nouh (Fuzzy Sets Syst., 1999)

Strong and ultra separation axioms of fuzzy bitopological spaces. - Ali Kandil; A. A. Nouh; Sobhy A. El-Sheikh (Fuzzy Sets Syst., 1999)