@article{ELMA_1982__37_141289,
     author = {H. Stachel},
     title = {Eine {Ortsaufabe} und der {Satz} von {Ivory.}},
     journal = {Elemente der Mathematik},
     pages = {97--103},
     publisher = {mathdoc},
     volume = {37},
     year = {1982},
     zbl = {0443.51013},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1982__37_141289/}
}