@article{MZ_1966__92_170549,
     author = {T.G. Ostrom},
     title = {The {Dual} {L\"uneburg} {Planes.}},
     journal = {Mathematische Zeitschrift},
     pages = {201--209},
     publisher = {mathdoc},
     volume = {92},
     year = {1966},
     zbl = {0178.23403},
     url = {http://geodesic.mathdoc.fr/item/MZ_1966__92_170549/}
}