@article{1250523328,
author = {Ninomiya, Haruki},
title = {Some remarks on the existence of independent solutions for homogeneous first order differential system},
journal = {J. Math. Kyoto Univ.},
volume = {13},
number = {3},
year = {1973},
pages = { 605-610},
language = {en},
url = {http://dml.mathdoc.fr/item/1250523328}
}
Ninomiya, Haruki. Some remarks on the existence of independent solutions for homogeneous first order differential system. J. Math. Kyoto Univ., Tome 13 (1973) no. 3, pp. 605-610. http://gdmltest.u-ga.fr/item/1250523328/