%0 Journal Article %A Jean Schmets %A Manuel Valdivia %T Extension maps in ultradifferentiable and ultraholomorphic function spaces %J Studia Mathematica %D 2000 %P 221-250 %V 143 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-143-3-221-250/ %R 10.4064/sm-143-3-221-250 %G en %F 10_4064_sm_143_3_221_250