@article{GDZPPN002346540,
title = {Hypoelliptic Convolution Equations.},
journal = {Mathematica Scandinavica},
volume = {9},
year = {1961},
pages = {178-184},
zbl = {0102.11003},
url = {http://dml.mathdoc.fr/item/GDZPPN002346540}
}
Hörmander, Lars. Hypoelliptic Convolution Equations.. Mathematica Scandinavica, Tome 9 (1961) pp. 178-184. http://gdmltest.u-ga.fr/item/GDZPPN002346540/