@article{1077489650,
author = {Levinson, Norman},
title = {On the closure of $\{e^{i\lambda\_nx}\}$},
journal = {Duke Math. J.},
volume = {2},
number = {1},
year = {1936},
pages = { 511-516},
language = {en},
url = {http://dml.mathdoc.fr/item/1077489650}
}
Levinson, Norman. On the closure of $\{e^{i\lambda_nx}\}$. Duke Math. J., Tome 2 (1936) no. 1, pp. 511-516. http://gdmltest.u-ga.fr/item/1077489650/