\input zb-basic
\input zb-ioport
\iteman{io-port 70015275}
\itemau{Iizuka, Kayo H.; Matsumoto, Masao J.}
\itemti{CEM: collaborative enterprises modeling}
\itemso{ICEIS (2), 639-644 (2001).}
\itemcc{}
\itemut{}
\itemli{}
\end