TY  - JOUR
AU  - J.J. Duistermaat
TI  - On Carleman Estimates for Pseudo-Differential Operators.
JO  - Inventiones mathematicae
PY  - 1972
SP  - 31
EP  - 43
VL  - 17
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1972__17_142156/
ID  - IM_1972__17_142156
ER  -