@article{GDZPPN002408619, title = {Inversions in Locally Affine Circular Spaces.}, journal = {Mathematische Zeitschrift}, volume = {121}, year = {1971}, pages = {165-177}, zbl = {0207.19403}, url = {http://dml.mathdoc.fr/item/GDZPPN002408619} }
Buekenhout, Francis. Inversions in Locally Affine Circular Spaces.. Mathematische Zeitschrift, Tome 121 (1971) pp. 165-177. http://gdmltest.u-ga.fr/item/GDZPPN002408619/