%0 Journal Article %A R. Sridharan %A M.-A. Knus %A R. Parimala %T On Rank 4 Quadratic Spaces with Given Arf and Witt Invariants. %J Mathematische Annalen %D 1986 %P 181-198 %V 274 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1986__274_164094/ %F MAN_1986__274_164094