@article{244139,
      note = {Based on replies to questionnaire.},
      url = {http://digitallibrary.un.org/record/244139},
      title = {Concentration indices in the European coal industry :  consolidated report /},
      publisher = {UN,},
      recid = {244139},
      pages = {19 p. :},
      address = {Geneva :. 1994-07-21},
      year = {1994},
      month = {Jul},
}