Employing Two Question Answering Systems in TREC 2005. - Sanda M. Harabagiu; Dan I. Moldovan; Christine Clark; Mitchell Bowden; Andrew Hickl; Patrick Wang 001 (TREC, 2005)

FERRET: Interactive Question-Answering for Real-World Environments. - Andrew Hickl; Patrick Wang 001; John Lehmann; Sanda M. Harabagiu (ACL, 2006)