1. On the relationship of extended necessity measures to implication operators on the unit interval;Abdel-Hamid;inform. Sci.,1995
2. Rough sets, twofold fuzzy sets and modal logic, fuzziness in indiscrenibility and partial information;Farinas,1986
3. Fuzzy Sets and Approximate Reasoning;Kerre,1988
4. Fuzzy T-locality spaces;Morsi;Fuzzy Sets and Systems,1995
5. Dual fuzzy neighbourhood spaces II;Morsi;J. Fuzzy Math.,1995