@misc{cryptoeprint:2009:522,
    author = {Daniel Shumow},
    title = {Isogenies of Elliptic Curves: A Computational Approach},
    howpublished = {Cryptology ePrint Archive, Report 2009/522},
    year = {2009},
    url = {http://eprint.iacr.org/2009/522},
}