\input zb-basic
\input zb-ioport
\iteman{io-port 70933181}
\itemau{Hartmann, Sven; Link, Sebastian}
\itemti{Multi-valued dependencies in the presence of lists}
\itemso{PODS, 330-341 (2004).}
\itemcc{}
\itemut{}
\itemli{http://www.acm.org/sigmod/pods/proc04/pdf/P-33.pdf}
\end