1. Integrals of set-valued functions;Aumann;J. Math. Anal. Appl.,1965
2. Some analytic and measure theoretic properties of set-valued mapping;Bradley;SIAM J. Control Optim.,1977
3. G. Debreu, Integration of correspondence, in: L.Le Cam, J. Neyman, E.L. Scott (Eds.), Proceedings of the Fifth Berkeley Symposium Math. Statist. Probability, University of California Press, Berkeley, CA, 1966, pp. 351–372.
4. Fuzzy differential equation;Kaleva;Fuzzy Sets and Systems,1987
5. The Cauchy problem for fuzzy differential equations;Kaleva;Fuzzy Sets and Systems,1990