%0 Journal Article
%A N. E. Mirzakhanyan
%A H. V. Piliposyan
%T On a question of A. Sozutov
%J Proceedings of the Yerevan State University. Physical and mathematical sciences
%D 2018
%P 88-92
%V 52
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZERU_2018_52_2_a2/
%G en
%F UZERU_2018_52_2_a2