TY - JOUR AU - Fefferman, C., Klartag, B. TI - An example related to Whitney extension with almost minimal $C^m$ norm. JO - Revista matemática iberoamericana PY - 2009 SP - 423 EP - 446 VL - 25 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RMI_2009_2009_1_a3/ LA - en ID - RMI_2009_2009_1_a3 ER -