\input zb-basic \input zb-ioport \iteman{io-port 70242164} \itemau{Zhong, Ning; Hayazaki, Norichika} \itemti{Roles of ontologies for web intelligence} \itemso{ISMIS, 55-65 (2002).} \itemcc{} \itemut{} \itemli{doi:10.1007/3-540-48050-1\_8} \end