@article{MOMA_1961__65_177144,
     author = {Wolfgang Str\"oher},
     title = {Zur {Kinematik} der fl\"achentreuen {Affinit\"aten} mit fixem {Ursprung.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {358--365},
     year = {1961},
     volume = {65},
     zbl = {0100.17302},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1961__65_177144/}
}