@article{JRAM_1993__437_153510,
     author = {Xavier Xarles},
     title = {The scheme of connected components of the {N\'eron} model of an algebraic torus.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {167--180},
     year = {1993},
     volume = {437},
     zbl = {0764.14009},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__437_153510/}
}