@misc{cryptoeprint:2014:468,
    author = {Jan Camenisch, Anja Lehmann, Gregory Neven, Alfredo Rial},
    title = {Privacy-Preserving Auditing for Attribute-Based Credentials},
    howpublished = {Cryptology ePrint Archive, Report 2014/468},
    year = {2014},
    url = {https://eprint.iacr.org/2014/468},
}