%0 Journal Article
%A Anton Deitmar
%T Invariant differential operators are linear combinations of symmetric positive ones.
%J Mathematische Annalen
%D 1993
%P 535-538
%V 297
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1993__297_3_165144/
%F MAN_1993__297_3_165144