\input zb-basic
\input zb-ioport
\iteman{io-port 50222903}
\itemau{Ying, Hao}
\itemti{Essentials of fuzzy modeling and control, by R. R. yager and D. P. filey}
\itemso{JASIS 46, No. 10, 791-792 (1995).}
\itemcc{}
\itemut{}
\itemli{}
\end