Most of the examples in this directory have been taken from:
  - the `lp' library of Netlib [1];
  - the problem sets MIPLIB 3.0 [2] and MIPLIB 2003 [3].

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[1] http://www.netlib.org/lp/index.html
[2] http://miplib.zib.de/miplib3/miplib3.html
[3] http://miplib.zib.de/miplib2003.php
