%0 Journal Article
%A Arne Jensen
%T Commutator Methods and a Smoothing Property of the Schrödinger Evolution Group.
%J Mathematische Zeitschrift
%D 1986
%P 53-60
%V 191
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1986__191_173656/
%F MZ_1986__191_173656