%0 Journal Article %A M. Poppenberg %T An application of the Nash-Moser theorem to ordinary differential equations in Fréchet spaces %J Studia Mathematica %D 1999 %P 101-121 %V 137 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-137-2-101-121/ %R 10.4064/sm-137-2-101-121 %G en %F 10_4064_sm_137_2_101_121