@article{tracking:pets2016,
  title =        {({Do} not) {Track} me sometimes: {Users'} contextual preferences for web tracking},
  author =       {William Melicher and Mahmood Sharif and Joshua Tan and Lujo Bauer and Mihai Christodorescu and Pedro Giovanni Leon},
  journal =      {Proceedings on Privacy Enhancing Technologies},
  year =         2016,
  number =       2,
  month =        apr,
  copyright =    {authors},
  publisher =    {De Gruyter Open},
  doi =          {10.1515/popets-2016-0009},
  url =          {https://www.ece.cmu.edu/~lbauer/papers/2016/pets2016-online-tracking.pdf},
  keywords =     {privacy, human factors, tracking}
}