Fast Automatic Passage Ranking (MultiText Experiments for TREC-8). - Gordon V. Cormack; Charles L. A. Clarke; D. I. E. Kisman; Christopher R. Palmer (TREC, 1999)

Question Answering by Passage Selection (MultiText Experiments for TREC-9). - Charles L. A. Clarke; Gordon V. Cormack; D. I. E. Kisman; Thomas R. Lynam (TREC, 2000)