%0 Journal Article
%A I. A. Panin
%T Two purity theorems and the Grothendieck-Serre conjecture concerning principal $\mathbf G$-bundles
%J Sbornik. Mathematics
%D 2020
%P 1777-1794
%V 211
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2020_211_12_a3/
%G en
%F SM_2020_211_12_a3