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@article{MZ_1966__92_170547, author = {Heinz L\"uneburg}, title = {On {M\"obius-Planes} of {Even} {Order.}}, journal = {Mathematische Zeitschrift}, pages = {187--193}, publisher = {mathdoc}, volume = {92}, year = {1966}, zbl = {0138.41601}, url = {http://geodesic.mathdoc.fr/item/MZ_1966__92_170547/} }
Heinz Lüneburg. On Möbius-Planes of Even Order.. Mathematische Zeitschrift, Tome 92 (1966), pp. 187-193. http://geodesic.mathdoc.fr/item/MZ_1966__92_170547/