Navigating information spaces: A case study of related article search in PubMed. - Jimmy Lin; Michael DiCuccio; Vahan Grigoryan; W. John Wilbur (Inf. Process. Manag., 2008)

Automatic Identification of Key Concepts in Large PubMed Retrievals. - Lana Yeganova; Vahan Grigoryan; Won Kim 003; W. John Wilbur (AAAI Fall Symposium: Information Retrieval and Knowledge Discovery in Biomedical Text, 2012)