TY - JOUR AU - Fitzgerald, Robert W. TI - Isotropy and factorization in reduced Witt rings JO - Documenta mathematica PY - 2001 SP - 141 EP - 163 VL - Proc. Conf. Baton Rouge, March 26-30,2001 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DOCMA_2001__S7__a5/ LA - en ID - DOCMA_2001__S7__a5 ER -