\input zb-basic
\input zb-ioport
\iteman{io-port 50331329}
\itemau{Conejero, Jos\'e Mar{\'\i}a; Figueiredo, Eduardo; Garcia, Alessandro; Hern\'andez, Juan; Jurado, Elena}
\itemti{On the relationship of concern metrics and requirements maintainability}
\itemso{Information & Software Technology 54, No. 2, 212-238 (2012).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/j.infsof.2011.09.003}
\end