@article{648010,
      url = {http://digitallibrary.un.org/record/648010},
      title = {Report of the Ad Hoc Group of Experts on Coal Mine Methane  on its 4th session : Economic Commission for Europe,  Committee on Sustainable Energy, Ad Hoc Group of Experts on  Coal Mine Methane, 4th session, Geneva, 16-17 October 2008},
      publisher = {UN,},
      recid = {648010},
      pages = {9 p.},
      address = {Geneva :. 2009-01-30},
      year = {2009},
      month = {Jan},
}