\input zb-basic
\input zb-ioport
\iteman{io-port 50118533}
\itemau{Murakawa, Takehiko; Nakagawa, Masaru}
\itemti{Graphical expression of SQL statements using clamshell diagram}
\itemso{IEICE Transactions 93-D, No. 4, 713-720 (2010).}
\itemcc{}
\itemut{}
\itemli{http://search.ieice.org/bin/summary.php?id=e93-d\_4\_713}
\end