@article{102762,
      url = {http://digitallibrary.un.org/record/102762},
      title = {Problem areas in environmental protection in opencast coal  mining /},
      publisher = {UN,},
      recid = {102762},
      pages = {5 p.},
      address = {Geneva :. 1984-05-07},
      year = {1984},
      month = {May},
}