\input zb-basic
\input zb-ioport
\iteman{io-port 70429467}
\itemau{Maeda, Yoji; Nakagawa, Masaki}
\itemti{A paper based user interface for editing documents}
\itemso{HCI (1), 243-246 (1999).}
\itemcc{}
\itemut{}
\itemli{}
\end