@article{MZ_1952__56_169298,
     author = {Hanno Rund},
     title = {The {Theory} of {Subspaces} of a {Finsler} {Space.} {Part} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {363--375},
     publisher = {mathdoc},
     volume = {56},
     year = {1952},
     zbl = {0047.41101},
     url = {http://geodesic.mathdoc.fr/item/MZ_1952__56_169298/}
}