@misc{MAN_1951__124_251951,
     title = {[unknown]},
     journal = {Mathematische Annalen},
     pages = {387--387},
     publisher = {mathdoc},
     volume = {124},
     year = {1951},
     url = {http://geodesic.mathdoc.fr/item/MAN_1951__124_251951/}
}