@article{1183419085, author = {Schweitzer, A. R.}, title = {On a fundamental relation in abstract geometry}, journal = {Bull. Amer. Math. Soc.}, volume = {13}, number = {3}, year = {1906}, pages = { 79-81}, language = {en}, url = {http://dml.mathdoc.fr/item/1183419085} }
Schweitzer, A. R. On a fundamental relation in abstract geometry. Bull. Amer. Math. Soc., Tome 13 (1906) no. 3, pp. 79-81. http://gdmltest.u-ga.fr/item/1183419085/