@article{00011587,
title = {An extension of Helson-Edwards theorem to Banach modules.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {14},
year = {1991},
pages = {227-232},
doi = {10.1155/S0161171291000248},
zbl = {0765.46035},
language = {en},
url = {http://dml.mathdoc.fr/item/00011587}
}
Takahasi, Sin-Ei. An extension of Helson-Edwards theorem to Banach modules.. International Journal of Mathematics and Mathematical Sciences, Tome 14 (1991) pp. 227-232. doi : 10.1155/S0161171291000248. http://gdmltest.u-ga.fr/item/00011587/