@article{GDZPPN002107333, title = {Estimating isogenies on elliptic curves.}, journal = {Inventiones mathematicae}, volume = {100}, year = {1990}, pages = {1-24}, zbl = {0722.14027}, url = {http://dml.mathdoc.fr/item/GDZPPN002107333} }
Masser, D.W.; Wüstholz, G. Estimating isogenies on elliptic curves.. Inventiones mathematicae, Tome 100 (1990) pp. 1-24. http://gdmltest.u-ga.fr/item/GDZPPN002107333/