@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/