@article{1195511294,
author = {Nagao, Koh-ichi},
title = {An example of elliptic curve over $Q$ with rank $ \geqq 20$},
journal = {Proc. Japan Acad. Ser. A Math. Sci.},
volume = {69},
number = {10},
year = {1993},
pages = { 291-293},
language = {en},
url = {http://dml.mathdoc.fr/item/1195511294}
}
Nagao, Koh-ichi. An example of elliptic curve over $Q$ with rank $ \geqq 20$. Proc. Japan Acad. Ser. A Math. Sci., Tome 69 (1993) no. 10, pp. 291-293. http://gdmltest.u-ga.fr/item/1195511294/