@article{MZ_1962__79_170068,
     author = {Heinz L\"uneburg},
     title = {Affine {Hjelmslev-Ebenen} mit transitiver {Translationsgruppe.}},
     journal = {Mathematische Zeitschrift},
     pages = {260--288},
     publisher = {mathdoc},
     volume = {79},
     year = {1962},
     zbl = {0135.39202},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170068/}
}