@misc{cryptoeprint:2017:731,
    author = {Dmitry Meshkov and Alexander Chepurnoy and Marc Jansen},
    title = {Revisiting Difficulty Control for Blockchain Systems},
    howpublished = {Cryptology ePrint Archive, Report 2017/731},
    year = {2017},
    url = {https://eprint.iacr.org/2017/731},
}