@article{939540,
      author = {Greco, Salvatore, and Ehrgott, Matthias, and Figueira,  José,},
      url = {http://library.usi.edu/record/939540},
      title = {Multiple criteria decision analysis : state of the art  surveys /},
      recid = {939540},
      pages = {1 online resource (2 volumes) :},
}