@misc{MAN_1970__188_182700,
     title = {[unknown]},
     journal = {Mathematische Annalen},
     pages = {270--284},
     publisher = {mathdoc},
     volume = {188},
     year = {1970},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__188_182700/}
}