%0 Journal Article %A Eckmann, Beno %A Mislin, Guido %T Chern classes of group representations over a number field %J Compositio Mathematica %D 1981 %P 41-65 %V 44 %N 1-3 %I Sijthoff et Noordhoff International Publishers %U http://www.numdam.org/item/CM_1981__44_1-3_41_0/ %G en %F CM_1981__44_1-3_41_0