%0 Journal Article %A Kuwata, Masato %T The field of definition of the Mordell-Weil group of an elliptic curve over a function field %J Compositio Mathematica %D 1990 %P 399-406 %V 76 %N 3 %I Kluwer Academic Publishers %U http://archive.numdam.org/item/CM_1990__76_3_399_0/ %G en %F CM_1990__76_3_399_0