\input zb-basic
\input zb-ioport
\iteman{io-port 70304690}
\itemau{Knopp, Sebastian; Sanders, Peter; Schultes, Dominik; Schulz, Frank; Wagner, Dorothea}
\itemti{Computing many-to-many shortest paths using highway hierarchies}
\itemso{ALENEX (2007).}
\itemcc{}
\itemut{}
\itemli{http://www.siam.org/proceedings/alenex/2007/alx07\_004knopps.pdf}
\end