@article{102120,
      url = {http://digitallibrary.un.org/record/102120},
      title = {Statistics on the transformation of coal into secondary  energy sources /},
      publisher = {UN,},
      recid = {102120},
      pages = {5 p. :},
      address = {Geneva :. 1983-04-15},
      year = {1983},
      month = {Apr},
}