\input zb-basic
\input zb-ioport
\iteman{io-port 50303967}
\itemau{Radenovic, Stojan; Rakocevic, Vladimir; Resapour, Shahram}
\itemti{Common fixed points for (g, f) type maps in cone metric spaces}
\itemso{Applied Mathematics and Computation 218, No. 2, 480-491 (2011).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/j.amc.2011.05.088}
\end