%0 Journal Article
%A Rao, K. P. R., Kishore, G. V. N., Sadik, Sk.
%T Unique common coupled fixed point theorem for four maps in $S_b$-metric spaces
%J Journal of Linear and Topological Algebra
%V 6
%N 1
%P 29-43
%D 2017
%R 
%U https://sanad.iau.ir/fa/Article/1080450