\input zb-basic \input zb-ioport \iteman{io-port 70569493} \itemau{Yi-Fu, Lang; Rong, Zhou; Deng-Ke, Yu} \itemti{Function restriction analysis of information network} \itemso{ICEE, 1651-1655 (2010).} \itemcc{} \itemut{} \itemli{doi:10.1109/ICEE.2010.418} \end