@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/