@misc{cryptoeprint:2019:169,
    author = {Johannes Blömer and Jan Bobolz and Denis Diemert and Fabian Eidens},
    title = {Updatable Anonymous Credentials and Applications to Incentive Systems},
    howpublished = {Cryptology ePrint Archive, Report 2019/169},
    year = {2019},
    url = {https://eprint.iacr.org/2019/169},
}