@article{10_21136_CMJ_1972_101079,
     author = {Karger, Adolf},
     title = {Kinematic geometry in $n$-dimensional {Euclidean} and spherical space},
     journal = {Czechoslovak Mathematical Journal},
     pages = {83--107},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1972},
     doi = {10.21136/CMJ.1972.101079},
     mrnumber = {0293524},
     zbl = {0236.53020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101079/}
}