%0 Journal Article %A Fitzgerald, Robert W. %T Isotropy and factorization in reduced Witt rings %J Documenta mathematica %D 2001 %P 141-163 %V Proc. Conf. Baton Rouge, March 26-30,2001 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2001__S7__a5/ %G en %F DOCMA_2001__S7__a5