\input zb-basic \input zb-ioport \iteman{io-port 70311285} \itemau{Niu, Jingchun; Shen, Limin; Zheng, Qun} \itemti{A measurement method of software flexibility based on SOCP} \itemso{CSEE (3), 260-266 (2011).} \itemcc{} \itemut{} \itemli{doi:10.1007/978-3-642-23345-6\_49} \end