TY  - BOOK
AU  - Wang ,Guoyin
TI  - Rough sets and knowledge technology / 
SN  - 9783540797203
U1  - 511.32 
PY  - 2008///
CY  - NewYork : 
PB  - Springer , 
KW  - ROUGH SETS
N1  - Includes index
ER  -