@inproceedings{sso:dim13,
  title =        {A comparison of users' perceptions and willingness to use {G}oogle, {F}acebook, and {G}oogle+ single-sign-on functionality},
  author =       {Lujo Bauer and Cristian Bravo-Lillo and Elli Fragkaki and William Melicher},
  booktitle =    {Proceedings of the ACM Digital Identity Management Workshop},
  year =         {2013},
  month =        nov,
  publisher =    {ACM},
  copyright =    {authors},
  doi =          {10.1145/2517881.2517886},
  url =          {http://www.ece.cmu.edu/~lbauer/papers/2013/dim2013-sso.pdf},
}