%0 Journal Article %A Andrzej Sładek %T Grothendieck and Witt groups in the reduced theory of quadratic forms %J Annales Polonici Mathematici %D 1980 %P 13-25 %V 38 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-38-1-13-25/ %R 10.4064/ap-38-1-13-25 %G en %F 10_4064_ap_38_1_13_25