Research in Support of Digital Libraries at Xerox PARC: Part II: Paper and Digital Documents. - Marti A. Hearst; Gary E. Kopec; Dan Brotsky (D Lib Mag., 1996)

Device Token Protocol for Persistent Authentication Shared across Applications. - John Trammel; Ümit Yalçinalp; Andrei Kalfas; James Boag; Dan Brotsky (ESOCC, 2012)