Culture Clash and the Road to World Domination. - Greg Perkins (IEEE Softw., 1999)

Social certificates and trust negotiation. - John F. Buford; I. P. Park; Greg Perkins (CCNC, 2006)

Composition Trust Bindings in Pervasive Computing Service Composition. - John F. Buford; Rakesh Kumar; Greg Perkins (PerCom Workshops, 2006)