TY  - RPRT
TI  - The fifteenth text retrieval conference TREC 2006 
AU  - Voorhees, Ellen M
AU  - Buckland, Lori P
PY  - 2007
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 500-272
DO  - 10.6028/NIST.SP.500-272
ER  -