TY  - BOOK
AU  - Zimmermann,H.J..
TI  - Fuzzy set theory and its applications / 
SN  - 8170235251
U1  - 511.322 
PY  - 1991///
CY  - New Delhi : 
PB  - Allied Publishers , 
KW  - FUZZY SETS
N1  - NULL
ER  -