TY - RPRT TI - The tenth text REtrieval conference, TREC 2001 AU - Voorhees, E M AU - Harman, D K PY - 2002 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 500-250 DO - 10.6028/NIST.SP.500-250 ER -