@article{CMH_1952__26_139045,
     author = {W. Scherrer},
     title = {Metrisches {Feld} und vektorielles {Materiefeld.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {184--202},
     publisher = {mathdoc},
     volume = {26},
     year = {1952},
     zbl = {0048.44503},
     url = {http://geodesic.mathdoc.fr/item/CMH_1952__26_139045/}
}