\input zb-basic
\input zb-ioport
\iteman{io-port 50321619}
\itemau{Lee, Goo Yeon; Jeong, Choong Kyo; Lee, Yong; Kim, Hwa Jong}
\itemti{Re-key interval optimization for secure group communications}
\itemso{J. Inf. Sci. Eng. 23, No. 3, 897-909 (2007).}
\itemcc{}
\itemut{}
\itemli{http://www.iis.sinica.edu.tw/page/jise/2007/200705\_15.html}
\end