@misc{cryptoeprint:2020:768,
    author = {Peter Dixon and Sutanu Gayen and A. Pavan and N. V. Vinodchandran},
    title = {Perfect Zero Knowledge: New Upperbounds and Relativized Separations},
    howpublished = {Cryptology ePrint Archive, Report 2020/768},
    year = {2020},
    url = {https://eprint.iacr.org/2020/768},
}