@misc{cryptoeprint:2014:721,
    author = {Zhengjun Cao and Zhenfu Cao},
    title = {On Shor's Factoring Algorithm with More Registers and the Problem to Certify Quantum Computers},
    howpublished = {Cryptology ePrint Archive, Report 2014/721},
    year = {2014},
    url = {https://eprint.iacr.org/2014/721},
}