@article{MOMA_1948__52_176790,
     author = {Paul Funk},
     title = {Beitr\"age zur zweidimensionalen {Finsler'schen} {Geometrie.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {194--216},
     publisher = {mathdoc},
     volume = {52},
     year = {1948},
     zbl = {0031.21701},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1948__52_176790/}
}