@article{1183529850,
author = {Rudin, Walter},
title = {Proof of a conjecture of Helson},
journal = {Bull. Amer. Math. Soc.},
volume = {74},
number = {6},
year = {1968},
pages = { 727-729},
language = {en},
url = {http://dml.mathdoc.fr/item/1183529850}
}
Rudin, Walter. Proof of a conjecture of Helson. Bull. Amer. Math. Soc., Tome 74 (1968) no. 6, pp. 727-729. http://gdmltest.u-ga.fr/item/1183529850/