@article{102772,
      url = {http://digitallibrary.un.org/record/102772},
      title = {Exploration by geophysical methods, extraction and  transport of hard rock inclusions during overburden removal  : questionnaire /},
      publisher = {UN,},
      recid = {102772},
      pages = {5 p.},
      address = {Geneva :. 1984-02-20},
      year = {1984},
      month = {Feb},
}