%0 Journal Article %A Fefferman, C., Klartag, B. %T An example related to Whitney extension with almost minimal $C^m$ norm. %J Revista matemática iberoamericana %D 2009 %P 423-446 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RMI_2009_2009_1_a3/ %G en %F RMI_2009_2009_1_a3