@misc{cryptoeprint:2018:167,
    author = {Nils Fleischhacker and Vipul Goyal and Abhishek Jain},
    title = {On the Existence of Three Round Zero-Knowledge Proofs},
    howpublished = {Cryptology ePrint Archive, Report 2018/167},
    year = {2018},
    url = {https://eprint.iacr.org/2018/167},
}