@article{DeMaPo_IJIS13,
  author    = {Emiliano De Cristofaro and
               Mark Manulis and
               Bertram Poettering},
  title     = {{Private Discovery of Common Social Contacts}},
  journal   = {International Journal of Information Security},
  volume    = {12},
  number    = {1},
  year      = {2013},
  pages     = {49--65},
  publisher = {Springer}}