@Inproceedings{2010proceedings,
  author = {Klein, Niklas and Sigg, Stephan and David, Klaus and Beigl, Michael},
  title  = {DAG Based Context Reasoning: Optimised DAG Creation},

  year   = {2010},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{1468271,
  author = {Klein, Bernd Niklas and Lau, Sian Lun and Pirali, Andreas and L\"{o}ffler, Tino and David, Klaus},
  title  = {DAGR - DAG Based Context Reasoning: An Architecture for Context Aware Applications},

  year   = {2008},
  number = {},
  url    = {},
  doi = {http://dx.doi.org/10.1109/ASWN.2008.9},
  const  = {\ text}
}