%0 Journal Article
%A Joseph J. Kohn
%A Makhlouf Derridj
%A David S. Tartakoff
%T Hypoellipticity and loss of derivatives (with an Appendix by Makhlouf Derridj and David S. Tartakoff)
%J Annals of mathematics
%D 2005
%P 943-986
%V 162
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.162.943/
%R 10.4007/annals.2005.162.943
%G en
%F 10_4007_annals_2005_162_943