@article{GDZPPN002055562, title = {The Foundations of Minkowskian Geometry.}, journal = {Commentarii mathematici Helvetici}, volume = {24}, year = {1950}, pages = {156-187}, zbl = {0040.37502}, url = {http://dml.mathdoc.fr/item/GDZPPN002055562} }
Busemann, Herbert. The Foundations of Minkowskian Geometry.. Commentarii mathematici Helvetici, Tome 24 (1950) pp. 156-187. http://gdmltest.u-ga.fr/item/GDZPPN002055562/