TY  - JOUR
AU  - M. Langenbruch
TI  - Laurent series expansion
for solutions of hypoelliptic
equations
JO  - Annales Polonici Mathematici
PY  - 2002
SP  - 277
EP  - 289
VL  - 78
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap78-3-6/
DO  - 10.4064/ap78-3-6
LA  - fr
ID  - 10_4064_ap78_3_6
ER  -