@article{2491,
author = {Biesterfeldt, H.J. jr.},
title = {Expansions of solutions to a hypoelliptic differential equation in terms of polynomiallike solutions},
journal = {Portugaliae mathematica},
volume = {25},
year = {1966},
pages = {123-128},
zbl = {0173.12103},
mrnumber = {0233990},
language = {en},
url = {http://dml.mathdoc.fr/item/2491}
}
Biesterfeldt, H.J. jr. Expansions of solutions to a hypoelliptic differential equation in terms of polynomiallike solutions. Portugaliae mathematica, Tome 25 (1966) pp. 123-128. http://gdmltest.u-ga.fr/item/2491/