@inproceedings{qpok,
  author       = {Unruh, Dominique},
  title        = {Quantum Proofs of Knowledge},
  booktitle    = {Eurocrypt 2012},
  series       = {LNCS},
  volume       = {7237},
  month        = {April},
  year         = {2012},
  publisher    = {Springer},
  pages        = {135-152},
  note         = {Preprint on IACR ePrint 2010/212}
}