@article{GDZPPN002344084,
title = {Sets of primes with intermediate density},
journal = {Mathematica Scandinavica},
volume = {3},
year = {1955},
pages = {264-274},
zbl = {0067.27503},
url = {http://dml.mathdoc.fr/item/GDZPPN002344084}
}
GOLOMB, SOLOMON W. Sets of primes with intermediate density. Mathematica Scandinavica, Tome 3 (1955) pp. 264-274. http://gdmltest.u-ga.fr/item/GDZPPN002344084/