%0 Journal Article %A Guerra, Lorenzo %T Hopf ring structure on the mod p cohomology of symmetric groups %J Algebraic and Geometric Topology %D 2017 %P 957-982 %V 17 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2017.17.957/ %R 10.2140/agt.2017.17.957 %F 10_2140_agt_2017_17_957