@article{10_4064_fm_46_1_103_107,
     author = {H. Kowalsky},
     title = {Kennzeichnung von {Bogen}},
     journal = {Fundamenta Mathematicae},
     pages = {103--107},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1958},
     doi = {10.4064/fm-46-1-103-107},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-46-1-103-107/}
}