TY  - RPRT
TI  - The sixth text Retrieval conference (TREC-6) 
AU  - Voorhees, E M
AU  - Harman, D K
PY  - 1998
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 500-240
DO  - 10.6028/NIST.SP.500-240
ER  -