@article{CM_1990__76_3_399_0,
     author = {Kuwata, Masato},
     title = {The field of definition of the {Mordell-Weil} group of an elliptic curve over a function field},
     journal = {Compositio Mathematica},
     pages = {399--406},
     publisher = {Kluwer Academic Publishers},
     volume = {76},
     number = {3},
     year = {1990},
     mrnumber = {1080009},
     zbl = {0731.14010},
     language = {en},
     url = {http://www.numdam.org/item/CM_1990__76_3_399_0/}
}