%0 Journal Article
%A Majumder, Sujoy
%A Mandal, Rajib
%T On a result of Zhang and Xu concerning their open problem
%J Archivum mathematicum
%D 2018
%P 65-89
%V 54
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5817/AM2018-2-65/
%R 10.5817/AM2018-2-65
%G en
%F 10_5817_AM2018_2_65