@article{bwmeta1.element.bwnjournal-article-aav34i1p9bwm,
author = {Levine, Eugene and O'Sullivan, Joseph},
title = {An upper estimate for the reciprocal sum of a sum-free sequence},
journal = {Acta Arithmetica},
volume = {32},
year = {1977},
pages = {9-24},
zbl = {0335.10053},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav34i1p9bwm}
}
Levine, Eugene; O'Sullivan, Joseph. An upper estimate for the reciprocal sum of a sum-free sequence. Acta Arithmetica, Tome 32 (1977) pp. 9-24. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav34i1p9bwm/