%0 Journal Article %A E. V. Sharoiko %T Hassett-Tschinkel correspondence and automorphisms of the quadric %J Sbornik. Mathematics %D 2009 %P 1715-1729 %V 200 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2009_200_11_a5/ %G en %F SM_2009_200_11_a5