\input zb-basic
\input zb-ioport
\iteman{io-port 70930446}
\itemau{Chen, Qingfa; Zhou, Keping; Long, Tengteng; Hu, Jianhua; Wang, Dan}
\itemti{UDEC-based stability analysis of the goafs in fragment ore section}
\itemso{ICCMS, 239-243 (2009).}
\itemcc{}
\itemut{}
\itemli{http://doi.ieeecomputersociety.org/10.1109/ICCMS.2009.41}
\end