@article{GDZPPN002321130, title = {Holomorphic Approximation of Ultradifferentiable Functions.}, journal = {Mathematische Annalen}, volume = {255}, year = {1981}, pages = {293-316}, zbl = {0463.32007}, url = {http://dml.mathdoc.fr/item/GDZPPN002321130} }
Droste, Bernd. Holomorphic Approximation of Ultradifferentiable Functions.. Mathematische Annalen, Tome 255 (1981) pp. 293-316. http://gdmltest.u-ga.fr/item/GDZPPN002321130/