\input zb-basic
\input zb-ioport
\iteman{io-port 70230940}
\itemau{Ihle, Torsten; Schirmer, Helmut; Fuchs, Siegfried}
\itemti{Interpretation of printed forms for blind people}
\itemso{CAIP, 550-555 (1995).}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/3-540-60268-2\_343}
\end