%0 Journal Article %A Heiko Hoffmann %T Normed algebras of differentiable functions on compact plane sets: completeness and semisimple completions %J Studia Mathematica %D 2011 %P 19-45 %V 207 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm207-1-2/ %R 10.4064/sm207-1-2 %G en %F 10_4064_sm207_1_2