@article{MAN_1964__153_161124,
     author = {K. Wagner},
     title = {Beweis einer {Abschw\"achung} der {Hadwiger-Vermutung.}},
     journal = {Mathematische Annalen},
     pages = {139--141},
     publisher = {mathdoc},
     volume = {153},
     year = {1964},
     zbl = {0192.30002},
     url = {http://geodesic.mathdoc.fr/item/MAN_1964__153_161124/}
}