\input zb-basic
\input zb-ioport
\iteman{io-port 70877405}
\itemau{M\"uller, Hans J\"org; Kr\"uger, Antonio}
\itemti{Visual navigation within conceptual spaces}
\itemso{SimVis, 271-284 (2007).}
\itemcc{}
\itemut{}
\itemli{http://www.simvis.org/Tagung2007/sv-proceedings.html}
\end