@article{bwmeta1.element.bwnjournal-article-smv71i1p15bwm,
author = {Rodrigo Arocena},
title = {A refinement of the Helson-Szeg\"o theorem and the determination of the extremal measures},
journal = {Studia Mathematica},
volume = {69},
year = {1981},
pages = {203-221},
zbl = {0529.42001},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv71i1p15bwm}
}
Arocena, Rodrigo. A refinement of the Helson-Szegö theorem and the determination of the extremal measures. Studia Mathematica, Tome 69 (1981) pp. 203-221. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv71i1p15bwm/