\input zb-basic
\input zb-ioport
\iteman{io-port 05894524}
\itemau{Xu, Yanwei}
\itemti{Efficient continual top-$k$ keyword search in relational databases.}
\itemso{Comput. Res. Repos. 2011, Article No. 1103.2651 (2011).}
\itemcc{}
\itemut{}
\itemli{http://arxiv.org/abs/1103.2651}
\end