@article{MOMA_1987__103_178332,
     author = {Helmut Pottmann},
     title = {Zur globalen {Raumkinematik.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {289--302},
     publisher = {mathdoc},
     volume = {103},
     year = {1987},
     zbl = {0624.53006},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1987__103_178332/}
}