@article{GDZPPN002089742,
title = {A Support Preserving Hahn-Banach Property to Determine Helson-S Sets.},
journal = {Inventiones mathematicae},
volume = {16},
year = {1972},
pages = {214-228},
zbl = {0239.43008},
url = {http://dml.mathdoc.fr/item/GDZPPN002089742}
}
Benedetto, John J. A Support Preserving Hahn-Banach Property to Determine Helson-S Sets.. Inventiones mathematicae, Tome 16 (1972) pp. 214-228. http://gdmltest.u-ga.fr/item/GDZPPN002089742/