Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1960__140_160771, author = {L. H\"ORMANDER}, title = {Differential {Equations} without {Solutions.}}, journal = {Mathematische Annalen}, pages = {169--173}, publisher = {mathdoc}, volume = {140}, year = {1960}, zbl = {0093.28903}, url = {http://geodesic.mathdoc.fr/item/MAN_1960__140_160771/} }
L. HÖRMANDER. Differential Equations without Solutions.. Mathematische Annalen, Tome 140 (1960), pp. 169-173. http://geodesic.mathdoc.fr/item/MAN_1960__140_160771/