@article{1250128835,
author = {Gilliam, David S.},
title = {Vector potentials for symmetric hyperbolic systems},
journal = {Rocky Mountain J. Math.},
volume = {10},
number = {4},
year = {1980},
pages = { 575-584},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128835}
}
Gilliam, David S. Vector potentials for symmetric hyperbolic systems. Rocky Mountain J. Math., Tome 10 (1980) no. 4, pp. 575-584. http://gdmltest.u-ga.fr/item/1250128835/