%0 Journal Article %A Otto Liess %T On the Influence of Lower Order Terms for Propagation of Analytic Singularities for Operators with Constant Coefficients. %J Mathematische Zeitschrift %D 1988 %P 297-304 %V 197 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1988__197_1_183735/ %F MZ_1988__197_1_183735