%0 Journal Article %A Mark L. MacDonald %T Projective homogeneous varieties birational to quadrics %J Documenta mathematica %D 2009 %P 47-66 %V 14 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/265/ %R 10.4171/dm/265 %F 10_4171_dm_265