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@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/} }
T.G. Ostrom. The Dual Lüneburg Planes.. Mathematische Zeitschrift, Tome 92 (1966), pp. 201-209. http://geodesic.mathdoc.fr/item/MZ_1966__92_170549/