\input zb-basic
\input zb-ioport
\iteman{io-port 70618773}
\itemau{Grimsmo, Nils; Bj{\o}rklund, Truls Amundsen; Torbj{\o}rnsen, {\o}ystein}
\itemti{Xleaf: twig evaluation with skipping loop joins and virtual nodes}
\itemso{DBKDA, 204-213 (2010).}
\itemcc{}
\itemut{}
\itemli{http://doi.ieeecomputersociety.org/10.1109/DBKDA.2010.8}
\end