@article{bwmeta1.element.bwnjournal-article-aav29i2p113bwm,
author = {Matthews, K.},
title = {A generalisation of Artin's conjecture for primitive roots},
journal = {Acta Arithmetica},
volume = {31},
year = {1976},
pages = {113-146},
zbl = {0335.10007},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav29i2p113bwm}
}
Matthews, K. A generalisation of Artin's conjecture for primitive roots. Acta Arithmetica, Tome 31 (1976) pp. 113-146. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav29i2p113bwm/