%0 Journal Article
%A S. M. L'vovskii
%T On the extension of varieties defined by quadratic equations
%J Sbornik. Mathematics
%D 1989
%P 305-317
%V 63
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1989_63_2_a2/
%G en
%F SM_1989_63_2_a2