@article{10_4171_dm_265,
     author = {Mark L. MacDonald},
     title = {Projective homogeneous varieties birational to quadrics},
     journal = {Documenta mathematica},
     pages = {47--66},
     year = {2009},
     volume = {14},
     doi = {10.4171/dm/265},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/265/}
}