@article{GDZPPN002262223,
title = {On the linear differential equation of hyperbolic type},
journal = {Mathematische Annalen},
volume = {65},
year = {1908},
pages = {570-576},
zbl = {39.0427.01},
url = {http://dml.mathdoc.fr/item/GDZPPN002262223}
}
Mason, M. On the linear differential equation of hyperbolic type. Mathematische Annalen, Tome 65 (1908) pp. 570-576. http://gdmltest.u-ga.fr/item/GDZPPN002262223/