%0 Journal Article
%A S. P. Novikov
%T Topological invariance of rational classes of Pontrjagin
%J Doklady Akademii Nauk
%D 1965
%P 298-300
%V 163
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1965_163_2_a6/
%G ru
%F DAN_1965_163_2_a6