@article{GDZPPN002083965,
title = {An Elementary Approach to Local Solvability for Constant Coefficient Partial Differential Equations.},
journal = {Forum mathematicum},
volume = {2},
year = {1990},
pages = {45-50},
zbl = {0712.35028},
url = {http://dml.mathdoc.fr/item/GDZPPN002083965}
}
Jerison, David. An Elementary Approach to Local Solvability for Constant Coefficient Partial Differential Equations.. Forum mathematicum, Tome 2 (1990) pp. 45-50. http://gdmltest.u-ga.fr/item/GDZPPN002083965/