\input zb-basic
\input zb-ioport
\iteman{io-port 50245406}
\itemau{Falk, James E.; Fiacco, Anthony V.}
\itemti{The use of mathematical programming: who let the man out?}
\itemso{Computers & OR 9, No. 1, 3-5 (1982).}
\itemcc{}
\itemut{}
\itemli{doi:10.1016/0305-0548(82)90003-X}
\end