@article{10_1090_S0894_0347_10_00660_0,
     author = {Esnault, H\'el\`ene and Wittenberg, Olivier},
     title = {On abelian birational sections},
     journal = {Journal of the American Mathematical Society},
     pages = {713--724},
     year = {2010},
     volume = {23},
     number = {3},
     doi = {10.1090/S0894-0347-10-00660-0},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-10-00660-0/}
}