@misc{cryptoeprint:2019:1440,
    author = {Sarah Azouvi and George Danezis and Valeria Nikolaenko},
    title = {Winkle: Foiling Long-Range Attacks in Proof-of-Stake Systems},
    howpublished = {Cryptology ePrint Archive, Report 2019/1440},
    year = {2019},
    url = {https://eprint.iacr.org/2019/1440},
}