An Automatic Method of Solving Discrete Programming Problems. Land, A. H. & Doig, A. G Econometrica, 28:497–520, 1960.
bibtex   
@Article{land60automatic,
  author    = {A. H. Land and A. G Doig},
  title     = {An Automatic Method of Solving Discrete Programming Problems},
  journal   = {Econometrica},
  year      = {1960},
  volume    = {28},
  pages     = {497--520},
  owner     = {baoanh},
  timestamp = {2010.07.30},
}

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