TY  - JOUR
AU  - Anton Deitmar
TI  - Invariant differential operators are linear combinations of symmetric positive ones.
JO  - Mathematische Annalen
PY  - 1993
SP  - 535
EP  - 538
VL  - 297
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1993__297_3_165144/
ID  - MAN_1993__297_3_165144
ER  -