%0 Journal Article %A Stephen D. Cohen %A Tomás Oliveira e Silva %A Tim Trudgian %T On Grosswald’s conjecture on primitive roots %J Acta Arithmetica %D 2016 %P 263-270 %V 172 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa8109-12-2015/ %R 10.4064/aa8109-12-2015 %G en %F 10_4064_aa8109_12_2015