@inproceedings{DBLP:conf/vr/WagnerS07,
  author    = {Dieter Wagner and
               Dieter Schmalstieg},
  title     = {Muddleware for Prototyping Mixed Reality Multiuser Games},
  booktitle = {VR},
  year      = {2007},
  pages     = {235-238},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/VR.2007.352489},
  crossref  = {DBLP:conf/vr/2007},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/vr/2007,
  editor    = {William R. Sherman and
               Ming C. Lin and
               Anthony Steed},
  title     = {IEEE Virtual Reality Conference, VR 2007, 10-14 March 2007,
               Charlotte, NC, USA, Proceedings},
  booktitle = {VR},
  publisher = {IEEE Computer Society},
  year      = {2007},
  isbn      = {1-4244-0905-5},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}