Xerox TREC-5 Site Report: Routing, Filtering, NLP, and Spanish Tracks. - David A. Hull; Gregory Grefenstette; B. Maximilian Schulze; Éric Gaussier; Hinrich Schütze; Jan O. Pedersen 001 (TREC, 1996)

Xerox TREC-6 Site Report: Cross Language Text Retrieval. - Éric Gaussier; Gregory Grefenstette; David A. Hull; B. Maximilian Schulze (TREC, 1997)