%0 Journal Article %A Shoji Yokura %T On the uniqueness problem of bivariant Chern classes %J Documenta mathematica %D 2002 %P 133-142 %V 7 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/120/ %R 10.4171/dm/120 %F 10_4171_dm_120