@article{1077303331, author = {Shaw, Mei-Chi}, title = {Hypoellipticity of a system of complex vector fields}, journal = {Duke Math. J.}, volume = {50}, number = {1}, year = {1983}, pages = { 713-728}, language = {en}, url = {http://dml.mathdoc.fr/item/1077303331} }
Shaw, Mei-Chi. Hypoellipticity of a system of complex vector fields. Duke Math. J., Tome 50 (1983) no. 1, pp. 713-728. http://gdmltest.u-ga.fr/item/1077303331/