TY  - GEN
AU  - 
AU  - Ribeiro,Berthier de Ara�jo Neto
TI  - Modern information retrieval 
SN  - 020139829X
U1  - 025.04 
PY  - 1999///
CY  - New York, Harlow, England
PB  - ACM Press, Addison-Wesley
KW  - Information storage and retrieval systems
ER  -