@misc{cryptoeprint:2010:383,
author = {Marc Joye and Mehdi Tibouchi and Damien Vergnaud},
title = {Huff's Model for Elliptic Curves},
howpublished = {Cryptology ePrint Archive, Report 2010/383},
year = {2010},
note = {\url{http://eprint.iacr.org/}},
}
You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.