%0 Journal Article %A Wenpeng, Zhang %T On the mean square value of Dirichlet’s $L$-functions %J Compositio Mathematica %D 1992 %P 59-69 %V 84 %N 1 %I Kluwer Academic Publishers %U http://archive.numdam.org/item/CM_1992__84_1_59_0/ %G en %F CM_1992__84_1_59_0