%0 Journal Article %A K. Matthews %T A generalisation of Artin's conjecture for primitive roots %J Acta Arithmetica %D 1976 %P 113-146 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-29-2-113-146/ %R 10.4064/aa-29-2-113-146 %G en %F 10_4064_aa_29_2_113_146