@article{01501873,
title = {A universal constant for exponential Riesz sequences.},
journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
volume = {19},
year = {2000},
pages = {553-559},
zbl = {0954.42019},
language = {en},
url = {http://dml.mathdoc.fr/item/01501873}
}
Lindner, A.M. A universal constant for exponential Riesz sequences.. Zeitschrift für Analysis und ihre Anwendungen, Tome 19 (2000) pp. 553-559. http://gdmltest.u-ga.fr/item/01501873/