@article{ELMA_1968__23_140872,
     author = {M. Jeger},
     title = {Der {Aufbau} der {Kongruenzgruppe} im {Raum} durch {Spiegelungen.}},
     journal = {Elemente der Mathematik},
     pages = {1--10},
     publisher = {mathdoc},
     volume = {23},
     year = {1968},
     zbl = {0153.21901},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1968__23_140872/}
}