@article{bwmeta1.element.bwnjournal-article-aav19i3p215bwm,
author = {Parry, Charles},
title = {On a problem of Schinzel concerning principal divisors in arithmetic progressions},
journal = {Acta Arithmetica},
volume = {18},
year = {1971},
pages = {215-222},
zbl = {0223.12004},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav19i3p215bwm}
}
Parry, Charles. On a problem of Schinzel concerning principal divisors in arithmetic progressions. Acta Arithmetica, Tome 18 (1971) pp. 215-222. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav19i3p215bwm/