@misc{cryptoeprint:2011:143,
    author = {Romain Cosset and Damien Robert},
    title = {Computing $(\ell,\ell)$-isogenies in polynomial time on Jacobians of genus~$2$ curves},
    howpublished = {Cryptology ePrint Archive, Report 2011/143},
    year = {2011},
    url = {http://eprint.iacr.org/2011/143},
}