@BOOK{Gol01,
  AUTHOR = {O. Goldreich},
  PUBLISHER = {Cambridge University Press},
  TITLE = {Foundations of Cryptography},
  YEAR = {2001}
}

@INPROCEEDINGS{cj98-01-15,
  AUTHOR = {S. Goldwasser and S. Micali and C. Rackoff},
  BOOKTITLE = {Proc.\ 17th annual {ACM} Symposium
                   on Theory of Computing},
  PAGES = {291-304},
  PUBLISHER = {ACM Press},
  TITLE = {The Knowledge Complexity of Interactive Proof-Systems},
  YEAR = {1985}
}

@INPROCEEDINGS{BRICS-EP-94-CDS_PPKS,
  AUTHOR = {R. Cramer and I. Damg{\aa}rd and
                   B. Schoenmakers},
  BOOKTITLE = {Proc.\  14th Annual International Cryptology Conference ({CRYPTO}'94)},
  PAGES = {174-187},
  PUBLISHER = {Springer-Verlag},
  SERIES = {LNCS},
  TITLE = {Proofs of Partial Knowledge and Simplified Design of
                   Witness Hiding Protocols},
  YEAR = {1994},
  ADDRESS = {Santa Barbara (California, USA)},
  VOLUME = {963}
}