@inproceedings{semantics:chi11,
  author =       {Robert W. Reeder and Lujo Bauer and Lorrie Faith Cranor and Michael K. Reiter and Kami Vaniea},
  title =        {More than skin deep: {M}easuring effects of the underlying model on access-control system usability},
  booktitle =    {{CHI} 2011: Conference on Human Factors in Computing Systems},
  year =         2011,
  month =        may,
  pages =        {2065--2074},
  copyright =    {ACM},
  url =         {http://www.ece.cmu.edu/~lbauer/papers/2011/chi2011-semantics.pdf},
}