@article{1077493233,
author = {Hartman, Philip},
title = {The divergence of non-harmonic gap series},
journal = {Duke Math. J.},
volume = {9},
number = {1},
year = {1942},
pages = { 404-405},
language = {en},
url = {http://dml.mathdoc.fr/item/1077493233}
}
Hartman, Philip. The divergence of non-harmonic gap series. Duke Math. J., Tome 9 (1942) no. 1, pp. 404-405. http://gdmltest.u-ga.fr/item/1077493233/