%0 Journal Article
%A S. Yu. Antonov
%A A. V. Antonova
%T To Chang theorem
%J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics
%D 2015
%P 247-251
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ISU_2015_15_3_a0/
%G ru
%F ISU_2015_15_3_a0