@misc{W2015914132,
  author = {Antonio Acín and Nicolas Brunner and Nicolas Gisin and Serge Massar and Stefano Pironio and Valerio Scarani},
  title = {Device-Independent Security of Quantum Cryptography against Collective Attacks},
  year = {2007},
  howpublished = {Physical Review Letters},
  doi = {https://doi.org/10.1103/physrevlett.98.230501}
}