1. Towards fuzzy analysis: Integration and differentiation of fuzzy mappings;Dubois,1978
2. Fuzzy Sets and Systems: Theory and Applications;Dubois,1980
3. Towards fuzzy differential calculus. Part 1: Integration of fuzzy mappings;Dubois;Fuzzy Sets and Systems,1982
4. Towards fuzzy differential calculus. Part 3: Differentiation;Dubois;Fuzzy Sets and Systems,1982
5. Independent fuzzy events;Khalili;J. Math. Anal. Appl.,1979