@article{GDZPPN002397412,
title = {The Dual L\"uneburg Planes.},
journal = {Mathematische Zeitschrift},
volume = {93},
year = {1966},
pages = {201-209},
zbl = {0178.23403},
url = {http://dml.mathdoc.fr/item/GDZPPN002397412}
}
Ostrom, T.G. The Dual Lüneburg Planes.. Mathematische Zeitschrift, Tome 93 (1966) pp. 201-209. http://gdmltest.u-ga.fr/item/GDZPPN002397412/