%0 Journal Article %A Williams, Bruce %T Applications of unstable normal invariants. Part I %J Compositio Mathematica %D 1979 %P 55-66 %V 38 %N 1 %I Sijthoff et Noordhoff International Publishers %U http://archive.numdam.org/item/CM_1979__38_1_55_0/ %G en %F CM_1979__38_1_55_0