@article{MAN_1925__94_159111,
     author = {P. Urysohn},
     title = {\"Uber die {M\"achtigkeit} der zusammenh\"angenden {Mengen}},
     journal = {Mathematische Annalen},
     pages = {262--295},
     publisher = {mathdoc},
     volume = {94},
     year = {1925},
     zbl = {51.0452.05},
     url = {http://geodesic.mathdoc.fr/item/MAN_1925__94_159111/}
}