TY  - JOUR
AU  - Charles Fefferman
TI  - A sharp form of Whitney’s extension theorem
JO  - Annals of mathematics
PY  - 2005
SP  - 509
EP  - 577
VL  - 161
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.161.509/
DO  - 10.4007/annals.2005.161.509
LA  - en
ID  - 10_4007_annals_2005_161_509
ER  -