@article{JEDP_1982____A3_0, author = {Hounie, Jorge}, title = {On global hypoellipticity of vector fields}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {3}, pages = {1--8}, publisher = {Ecole polytechnique}, year = {1982}, mrnumber = {83k:35025}, zbl = {0489.35032}, language = {en}, url = {http://archive.numdam.org/item/JEDP_1982____A3_0/} }
Hounie, Jorge. On global hypoellipticity of vector fields. Journées équations aux dérivées partielles (1982), article no. 3, 8 p. http://archive.numdam.org/item/JEDP_1982____A3_0/
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