%0 Journal Article %A Michael Langenbruch %T Characterization of surjective partial differential operators on spaces of real analytic functions %J Studia Mathematica %D 2004 %P 53-96 %V 162 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm162-1-4/ %R 10.4064/sm162-1-4 %G en %F 10_4064_sm162_1_4