@article{1200690895, author = {Yamamoto, Minoru}, title = {On partially hypoelliptic operators}, journal = {Osaka Math. J.}, volume = {15}, number = {1}, year = {1963}, pages = { 233-247}, language = {en}, url = {http://dml.mathdoc.fr/item/1200690895} }
Yamamoto, Minoru. On partially hypoelliptic operators. Osaka Math. J., Tome 15 (1963) no. 1, pp. 233-247. http://gdmltest.u-ga.fr/item/1200690895/