@inproceedings{DBLP:conf/nsdi/DalalNSGE08,
  author    = {Brinda Dalal and
               Les Nelson and
               Diana K. Smetters and
               Nathaniel Good and
               Ame Elliot},
  title     = {Ad-hoc Guesting: When Exceptions Are the Rule},
  booktitle = {UPSEC},
  year      = {2008},
  ee        = {http://www.usenix.org/events/upsec08/tech/full_papers/dalal/dalal.pdf},
  crossref  = {DBLP:conf/nsdi/2008upsec},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/nsdi/2008upsec,
  editor    = {Elizabeth F. Churchill and
               Rachna Dhamija},
  title     = {Usability, Psychology, and Security, April 14, 2008, San
               Francisco, CA, USA, Proceedings},
  booktitle = {UPSEC},
  publisher = {USENIX Association},
  year      = {2008},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}