1. Measure Theory;Halmos,1967
2. Fuzzy σ-algebras and fuzzy measurable functions;Klement;Fuzzy Sets and Systems,1980
3. On the construction of fuzzy measures;Kruse;Fuzzy Sets and Systems,1982
4. Abstract integrals on fuzzy sets;Zhong;BUSEFAL,1987
5. Transformation theorems of abstract integrals on fuzzy sets;Zhong,1988