%0 Journal Article
%A Serre, Jean-Pierre
%T On a functorial property of power residue symbols. Erratum : Solution of the congruence subgroup problem for $SL_n (n \ge 3)$ and $Sp_{2n} (n \ge 2)$
%J Publications Mathématiques de l'IHÉS
%D 1974
%P 241-244
%V 44
%I Institut des Hautes Études Scientifiques
%U http://www.numdam.org/item/PMIHES_1974__44__241_0/
%G en
%F PMIHES_1974__44__241_0