@article{GDZPPN002041820,
title = {On an application of hypoellipticity to solutions of functional equations.},
journal = {Aequationes mathematicae},
volume = {52},
year = {1996},
pages = {270-276},
zbl = {0852.39004},
url = {http://dml.mathdoc.fr/item/GDZPPN002041820}
}
Haruki, Shigeru; Tsutsumi, Akira. On an application of hypoellipticity to solutions of functional equations.. Aequationes mathematicae, Tome 52 (1996) pp. 270-276. http://gdmltest.u-ga.fr/item/GDZPPN002041820/