@article{RMI_2009_2009_1_a0, author = {Fefferman, C.}, title = {Extension of {C^{m,} {\omega}-Smooth} {Functions} by {Linear} {Operators.}}, journal = {Revista matem\'atica iberoamericana}, pages = {1-48}, publisher = {mathdoc}, volume = {25}, number = {1}, year = {2009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RMI_2009_2009_1_a0/} }