@article{GDZPPN002087294, title = {Halbeinfache Gruppenschemata \"uber vollst\"andigen Kurven.}, journal = {Inventiones mathematicae}, volume = {5}, year = {1968}, pages = {107-149}, zbl = {0186.25902}, url = {http://dml.mathdoc.fr/item/GDZPPN002087294} }
HARDER, G. Halbeinfache Gruppenschemata über vollständigen Kurven.. Inventiones mathematicae, Tome 5 (1968) pp. 107-149. http://gdmltest.u-ga.fr/item/GDZPPN002087294/