\begin{thebibliography}{Goe94}

\bibitem[Goe94]{goemans:lp}
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\newblock Introduction to {Linear Programming}.
\newblock Lecture notes, available from http://www-math.mit.edu/\~{}goemans/,
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\bibitem[Kar91]{karloff:lp}
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\newblock {\em Linear Programming}.
\newblock {Birkh\"auser}, Boston, MA, 1991.

\end{thebibliography}
