@article{VMUMM_2006_5_a4,
     author = {S. N. Preobrazhenskii},
     title = {Modular elliptic curves and factorization},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {25--32},
     publisher = {mathdoc},
     number = {5},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2006_5_a4/}
}