@misc{cryptoeprint:2015:426,
    author = {Alex Biryukov and Ivica Nikolic},
    title = {Complementing Feistel Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2015/426},
    year = {2015},
    url = {https://eprint.iacr.org/2015/426},
}