%0 Journal Article
%T The issue is dedicated to the memory of Petr Sergeevich Novikov and Sergei Ivanovich Adian
%J Izvestiya. Mathematics 
%D 2021
%P I
%V 85
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_2021_85_6_a0/
%G en
%F IM2_2021_85_6_a0