@article{GDZPPN002345161, title = {On the relation of congruence in finite geometries}, journal = {Mathematica Scandinavica}, volume = {5}, year = {1957}, pages = {197-201}, zbl = {0081.14801}, url = {http://dml.mathdoc.fr/item/GDZPPN002345161} }
KUSTAANHEIMO, PAUL. On the relation of congruence in finite geometries. Mathematica Scandinavica, Tome 5 (1957) pp. 197-201. http://gdmltest.u-ga.fr/item/GDZPPN002345161/