Fundamentals of Fuzzy Sets

Dubois, D. - Kerre, E. E. - Mesiar, Radko - Prade, H.
Fuzzy interval analysis.
Boston: Kluwer Academic, 2000. The Handbooks of Fuzzy Sets Series. ISBN 0-7923-7732-X. In: Fundamentals of Fuzzy Sets. - (Dubois, D.; Prade, H.), s. 483-582
http://hdl.handle.net/11104/0130561