@misc{MAN_1967__173_251911,
     title = {[unknown]},
     journal = {Mathematische Annalen},
     pages = {322--322},
     publisher = {mathdoc},
     volume = {173},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__173_251911/}
}