@inproceedings{1996-couveignes ,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1996/\allowbreak couveignes}} ,author={Jean-Marc Couveignes} ,crossref={1996-cohen} ,pages={59--65} ,title={{Computing $\ell$-isogenies using the $p$-torsion}} ,year={1996} }