The ContactFinder Agent: Answering Bulletin Board Questions with Referrals. - Bruce Krulwich; Chad Burkey (AAAI/IAAI, Vol. 1, 1996)

The InfoFinder Agent: Learning User Interests through Heuristic Phrase Extraction. - Bruce Krulwich; Chad Burkey (IEEE Expert, 1997)

Environmental interfaces: HomeLab. - Chad Burkey (CHI Extended Abstracts, 2000)