Ries, S. (2006):
Engineering Trust in Ubiquitous Computing.
In: Proceedings of Workshop on Software Engineering Challenges for Ubiquitous Computing. Gerd Kortuem (Ed.). S. 91-92, Lancaster University, UK, 2006., [Conference or Workshop Item]

Ries, S. and Kangasharju, J. and Mühlhäuser, Max (2006):
A classification of trust systems.
In: On the move to meaningful internet systems 2006: OTM 2006 workshops : OTM Confederated international workshops and Posters, AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET, OnToContent, ORM, PerSys, OTM Academy Doctoral Consortium, RDDS, SWWS, and Se, [Conference or Workshop Item]