@article{ELMA_1974__29_141137,
     author = {Eike Hertel},
     title = {Mittelpunktspolyeder im {E4.}},
     journal = {Elemente der Mathematik},
     pages = {59--64},
     publisher = {mathdoc},
     volume = {29},
     year = {1974},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1974__29_141137/}
}