@article{1250520303,
author = {Matsumoto, Makoto},
title = {A slope of a mountain is a Finsler surface with respect to a time measure},
journal = {J. Math. Kyoto Univ.},
volume = {29},
number = {4},
year = {1989},
pages = { 17-25},
language = {en},
url = {http://dml.mathdoc.fr/item/1250520303}
}
Matsumoto, Makoto. A slope of a mountain is a Finsler surface with respect to a time measure. J. Math. Kyoto Univ., Tome 29 (1989) no. 4, pp. 17-25. http://gdmltest.u-ga.fr/item/1250520303/