@article{244167,
      url = {http://digitallibrary.un.org/record/244167},
      title = {Research and development on safety in the coal industry :  replies to the questionnaire /},
      publisher = {[UN],},
      recid = {244167},
      pages = {7 p.},
      address = {Geneva :. 1992-12-02},
      year = {1992},
      month = {Dec},
}