\input zb-basic
\input zb-ioport
\iteman{io-port 70553651}
\itemau{Hoel, Erik G.; Samet, Hanan}
\itemti{A qualitative comparison study of data structures for large line segment databases}
\itemso{SIGMOD Conference, 205-214 (1992).}
\itemcc{}
\itemut{}
\itemli{}
\end