TY  - JOUR
AU  - Biesterfeldt, H.J. jr.
TI  - Expansions of solutions to a hypoelliptic differential equation in terms of polynomiallike solutions
JO  - Portugaliae mathematica
PY  - 1966
SP  - 123
EP  - 128
VL  - 25
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1966__25_3_114981/
LA  - en
ID  - PORMA_1966__25_3_114981
ER  -