@article{JDM_1961__64_146488,
     author = {Hugo Hadwiger},
     title = {Kleine {Studie} zur elementaren {Stetigkeitsgeometrie.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {78--81},
     publisher = {mathdoc},
     volume = {64},
     year = {1961},
     zbl = {0099.39306},
     url = {http://geodesic.mathdoc.fr/item/JDM_1961__64_146488/}
}