@article{102775,
      url = {http://digitallibrary.un.org/record/102775},
      title = {Exploration by geophysical methods, extraction and  transport of hard rock inclusions during overburden removal  : replies to the questionnaire /},
      publisher = {UN,},
      recid = {102775},
      pages = {8 p.},
      address = {Geneva :. 1984-08-29},
      year = {1984},
      month = {Aug},
}