@misc{cryptoeprint:2015:1228,
    author = {Eric R. Verheul},
    title = {Privacy protection in electronic education based on polymorphic pseudonymization},
    howpublished = {Cryptology ePrint Archive, Report 2015/1228},
    year = {2015},
    url = {https://eprint.iacr.org/2015/1228},
}