@article{ASNSP_1964_3_18_3_255_0, author = {Schechter, Martin}, title = {On the dominance of partial differential operators {II}}, journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche}, pages = {255--282}, publisher = {Scuola normale superiore}, volume = {Ser. 3, 18}, number = {3}, year = {1964}, zbl = {0125.05903}, mrnumber = {188614}, language = {en}, url = {http://archive.numdam.org/item/ASNSP_1964_3_18_3_255_0/} }