1. Fixed points for fuzzy mappings;Butnariu;Fuzzy Sets and Systems,1982
2. Fixed point theorems for fuzzy mappings;Chang;Kexue Tongbao,1984
3. Fixed point theorems for fuzzy mappings;Chang;Fuzzy Sets and Systems,1985
4. Fixed point theorems for fuzzy mappings;Chang;Appl. Math. Mech.,1984
5. Fixed degree for fuzzy mappings;Fan;Kexue Tongbao,1985