\input zb-basic
\input zb-ioport
\iteman{io-port 05332844}
\itemau{Ruspini, E.H.}
\itemti{Possibility theory approaches for advanced information systems.}
\itemso{Computer 15, No. 09, 83-91 (1982).}
\itemcc{}
\itemut{}
\itemli{doi:10.1109/MC.1982.1654139}
\end