@article{244169,
      url = {http://digitallibrary.un.org/record/244169},
      title = {Research and development on safety in the coal industry :  replies to the questionnaire /},
      publisher = {[UN],},
      recid = {244169},
      pages = {2 p.},
      address = {Geneva :. 1993-07-14},
      year = {1993},
      month = {Jul},
}