TY  - BOOK
AU  - Zimmermann,H.J..
TI  - Fuzzy set theory -- and its applications
SN  - 0792374355
AV  - QA248  .Z55 2001
PY  - 2001///
CY  - Boston
PB  - Kluwer Academic Publishers
KW  - Fuzzy sets
KW  - Operations research
ER  -