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@article{MZ_1970__116_171364, author = {Judita Cofman}, title = {Inversions in {Finite} {M\"obius} {Planes} of {Even} {Order.}}, journal = {Mathematische Zeitschrift}, pages = {1--7}, publisher = {mathdoc}, volume = {116}, year = {1970}, zbl = {0194.51402}, url = {http://geodesic.mathdoc.fr/item/MZ_1970__116_171364/} }
Judita Cofman. Inversions in Finite Möbius Planes of Even Order.. Mathematische Zeitschrift, Tome 116 (1970), pp. 1-7. http://geodesic.mathdoc.fr/item/MZ_1970__116_171364/