1. On several representations of an uncertain body of evidence;Dubois,1982
2. Fuzzy sets as equivalence class of random sets;Goodman,1982
3. An example of linguistic modelling: The case of Mulders theory of power;Kickert,1979
4. Maximum entropy estimation with inexact information;Leung,1982
5. On random sets and belief functiosn;Nguyen;J. Math. Anal. Appl.,1978