@misc{cryptoeprint:2012:010,
    author = {Charanjit Jutla and Moti Yung},
    title = {PayTree: "Amortized Signature" for Flexible Micro-Payments},
    howpublished = {Cryptology ePrint Archive, Report 2012/010},
    year = {2012},
    url = {http://eprint.iacr.org/2012/010},
}