TY - CHAP ID - J.1997a T1 - Concepts of fuzzy-valued statistics A1 - Gebhardt, Jörg A1 - Gil, María Ángeles A1 - Kruse, Rudolf ED - Slowinski, R. T3 - International Handbook on Fuzzy Sets and Possibility Theory Y1 - 1997 VL - 4 SP - 35 PB - Kluwer AD - New York ER -