@incollection{JEDP_1983____A1_0, author = {Baouendi, Mohamed S.}, title = {Analytic approximation for homogeneous solutions of linear {PDE's}}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {1}, pages = {1--4}, publisher = {Ecole polytechnique}, year = {1983}, zbl = {0531.35017}, language = {en}, url = {http://www.numdam.org/item/JEDP_1983____A1_0/} }