@article{447057,
      author = {Fujishige, Satoru.},
      url = {http://library.usi.edu/record/447057},
      title = {Submodular functions and optimization [electronic  resource] /},
      publisher = {Elsevier,},
      recid = {447057},
      pages = {xiv, 395 p.},
      address = {Boston :},
      year = {2005},
}