@article{93977,
      url = {http://digitallibrary.un.org/record/93977},
      title = {Economy evaluation method for pumped-storage plants /},
      publisher = {UN,},
      recid = {93977},
      pages = {6 p. :},
      address = {Geneva :. 1982-05-17},
      year = {1982},
      month = {May},
}