%0 Journal Article %A Čech, Martin %T Mean value of real Dirichlet characters using a double Dirichlet series %J Canadian mathematical bulletin %D 2023 %P 1135-1151 %V 66 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/S000843952300022X/ %R 10.4153/S000843952300022X %F 10_4153_S000843952300022X