\input zb-basic \input zb-ioport \iteman{io-port 70677451} \itemau{Oshima, Shunsuke; Nakashima, Takuo; Nishikido, Yusuke} \itemti{Extraction of characteristics of anomaly accessed IP packets using chi-square method} \itemso{CISIS, 287-292 (2009).} \itemcc{} \itemut{} \itemli{http://doi.ieeecomputersociety.org/10.1109/CISIS.2009.116} \end