TY  - VIDEO
AU  - Ellen Voorhees
C2  - Overview of the TREC-9 Question Answering Track
DA  - 2001-09-03
LA  - en
PB  - Overview of the TREC-9 Question Answering Track
PY  - 2001
TI  - Overview of the TREC-9 Question Answering Track
UR  - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151529
ER  -