[1] D. Dubois, H. Prade:
Fuzzy Sets and Systems. Academic Press, New York-London-Tokyo 1980.
MR 0589341 |
Zbl 0444.94049
[2] D. Dubois, H. Prade:
Fuzzy numbers: an overview. In: Analysis of Fuzzy Information. (J.C. Bezdek, ed.), CRC Press, Boca Raton 1988, Vol. I, pp. 3-39.
MR 0910312
[3] U. Hohle:
Representation theorem for L-fuzzy quantities. Fuzzy Sets and Systems 3 (1981), 1, 83-107.
MR 0595955
[4] M. Kovács, L. H. Tran:
Algebraic structure of centered m-fuzzy numbers. Fuzzy Sets and Systems 59 (1991), 1, 91-100.
MR 1089014
[5] M. Mareš:
Addition of fuzzy quantities: disjunction-conjunction approach. Kybernetika 25 (1989), 2, 104-116.
MR 0995953
[6] M. Mareš: Algebra of fuzzy quantities. Internat. J. Gen. Systems 20 (1991), 1, 59-65.
[7] M. Mareš:
Additive decomposition of fuzzy quantities with finite supports. Fuzzy Sets and Systems 47 (1992), 3, 341-346.
MR 1166282
[8] M. Mareš: Space of symmetric normal fuzzy quantities. Internat. J. Gen. Systems, submitted.
[9] M. Mareš:
Multiplication of fuzzy quantities. Kybernetika 28 (1992), 5, 337-356.
MR 1197719
[10] V. Novák:
Fuzzy Sets and Their Applications. A. Hilger, Bristol 1989.
MR 1019090