@article{GDZPPN00240690X,
title = {Inversions in Finite M\"obius Planes of Even Order.},
journal = {Mathematische Zeitschrift},
volume = {114},
year = {1970},
pages = {1-7},
zbl = {0194.51402},
url = {http://dml.mathdoc.fr/item/GDZPPN00240690X}
}
Cofman, Judita. Inversions in Finite Möbius Planes of Even Order.. Mathematische Zeitschrift, Tome 114 (1970) pp. 1-7. http://gdmltest.u-ga.fr/item/GDZPPN00240690X/