@article{CMH_1950__24_139004,
     author = {Herbert Busemann},
     title = {The {Foundations} of {Minkowskian} {Geometry.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {156--187},
     year = {1950},
     volume = {24},
     zbl = {0040.37502},
     url = {http://geodesic.mathdoc.fr/item/CMH_1950__24_139004/}
}