TY  - GEN
AU  - Zimmermann, H J
TI  - Fuzzy set theory and its appliations/  2nd ed
SN  - 81-7023-525-1
U1  - 510.5/.6 
PY  - 1991///
CY  - New Delhi
PB  - Allied
KW  - Mathematics
KW  - Fuzzy system
ER  -