Klein, Bernd Niklas, Lau, Sian Lun, Pirali, Andreas, Löffler, Tino and David, Klaus. "DAGR - DAG Based Context Reasoning: An Architecture for Context Aware Applications." Paper presented at the meeting of the ASWN '08: Proceedings of the 2008 Eighth International Workshop on Applications and Services in Wireless Networks, Washington, DC, USA, 2008.