@misc{cryptoeprint:2013:611,
    author = {Mitsugu Iwamoto and Thomas Peyrin and Yu Sasaki},
    title = {Limited-birthday Distinguishers for Hash Functions - Collisions Beyond the Birthday Bound can be Meaningful},
    howpublished = {Cryptology ePrint Archive, Report 2013/611},
    year = {2013},
    url = {https://eprint.iacr.org/2013/611},
}