%0 Journal Article %A J. Bonet %A R. Braun %A R. Meise %A B. Taylor %T Whitney's extension theorem for nonquasianalytic classes of ultradifferentiable functions %J Studia Mathematica %D 1991 %P 155-184 %V 99 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-99-2-155-184/ %R 10.4064/sm-99-2-155-184 %G en %F 10_4064_sm_99_2_155_184