\input zb-basic
\input zb-ioport
\iteman{io-port 70548304}
\itemau{Balbastre, Patricia; Ripoll, Ismael; Crespo, Alfons}
\itemti{Exact response time analysis of hierarchical fixed-priority scheduling}
\itemso{RTCSA, 315-320 (2009).}
\itemcc{}
\itemut{}
\itemli{http://doi.ieeecomputersociety.org/10.1109/RTCSA.2009.40}
\end