\input zb-basic
\input zb-ioport
\iteman{io-port 71018303}
\itemau{Vellon, Manny; Marple, Kirk; Mitchell, Don; Drucker, Steven}
\itemti{The architecture of a distributed virtual worlds system}
\itemso{COOTS, 211-218 (1998).}
\itemcc{}
\itemut{}
\itemli{http://www.usenix.org/publications/library/proceedings/coots98/vellon.html}
\end