@article{1103038626,
author = {Brauer, Fred},
title = {Spectral theory for linear systems of differential equations.},
journal = {Pacific J. Math.},
volume = {10},
number = {4},
year = {1960},
pages = { 17-34},
language = {en},
url = {http://dml.mathdoc.fr/item/1103038626}
}
Brauer, Fred. Spectral theory for linear systems of differential equations.. Pacific J. Math., Tome 10 (1960) no. 4, pp. 17-34. http://gdmltest.u-ga.fr/item/1103038626/