TY  - JOUR
AU  - Biesterfeldt, H.J. jr.
TI  - Summability of series of polynomial solutions to a hypoelliptic equation
JO  - Portugaliae mathematica
PY  - 1966
SP  - 147
EP  - 164
VL  - 25
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1966__25_3_114985/
LA  - en
ID  - PORMA_1966__25_3_114985
ER  -