%0 Journal Article
%A Markus Poppenberg
%T Negative results on the Nash-Moser theorem for Köthe sequences spaces and for spaces of ultradifferentiable functions.
%J Manuscripta mathematica
%D 1996
%P 465-478
%V 90
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1996__90_2_156206/
%F MM2_1996__90_2_156206