Damgard88a'

@inproceedings{DBLP:conf/crypto/Damgard88a,
  author    = {Ivan Damg{\aa}rd},
  title     = {Payment Systems and Credential Mechanisms with Provable
               Security Against Abuse by Individuals},
  booktitle = {CRYPTO},
  year      = {1988},
  pages     = {328-335},
  ee        = {http://dx.doi.org/10.1007/0-387-34799-2_26},
  crossref  = {DBLP:conf/crypto/1988},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/crypto/1988,
  editor    = {Shafi Goldwasser},
  title     = {Advances in Cryptology - CRYPTO '88, 8th Annual International
               Cryptology Conference, Santa Barbara, California, USA, August
               21-25, 1988, Proceedings},
  booktitle = {CRYPTO},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {403},
  year      = {1990},
  isbn      = {3-540-97196-3},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}