TY  - BOOK
AU  - Liu,Sifeng
AU  - Lin,Yi
TI  - Grey information: theory and practical applications 
SN  - 1852339950 :
U1  - 003.3 
PY  - 2006///
CY  - London
PB  - Springer
KW  - System theory
N1  - Includes index
ER  -