@article{102344,
      url = {http://digitallibrary.un.org/record/102344},
      title = {Programme of the 7th session and study tour : Economic  Commission for Europe, Coal Committee, Meeting of Directors  of National Mining Research Institutes, 7th session, 14-18  May 1984, Varna, Bulgaria.},
      publisher = {UN,},
      recid = {102344},
      pages = {3, [3] p.},
      address = {Geneva :. 1983-12-28},
      year = {1983},
      month = {Dec},
}