@article{1138845646,
author = {Nishimoto, Toshihiko},
title = {A turning point problem of an $n$-th order differential equation of hydrodynamic type},
journal = {Kodai Math. Sem. Rep.},
volume = {20},
number = {1},
year = {1968},
pages = { 218-256},
language = {en},
url = {http://dml.mathdoc.fr/item/1138845646}
}
Nishimoto, Toshihiko. A turning point problem of an $n$-th order differential equation of hydrodynamic type. Kodai Math. Sem. Rep., Tome 20 (1968) no. 1, pp. 218-256. http://gdmltest.u-ga.fr/item/1138845646/