@article{JRAM_1983__341_152526,
     author = {Jos\'e Bertin},
     title = {Pinceaux de droites et automorphismes des surfaces affines.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {32--53},
     publisher = {mathdoc},
     volume = {341},
     year = {1983},
     zbl = {0501.14028},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1983__341_152526/}
}