\input zb-basic
\input zb-ioport
\iteman{io-port 70218680}
\itemau{De Boer, Frank S.; Gabbrielli, Maurizio}
\itemti{Modeling real-time in concurrent constraint programming}
\itemso{GULP-PRODE, 101-112 (1995).}
\itemcc{}
\itemut{}
\itemli{}
\end