TY  - BOOK
AU  - Croft W Bruce
AU  - Lafferty John
TI  - Language modeling for information retrieval
SN  - 1-4020-1216-0
U1  - 005.74 
PY  - 2003///
CY  - Dordrecht
PB  - Kluwer Academic
KW  - Information retrieval
KW  - Language modeling
ER  -