@article{242211,
      note = {"Annex 1: Revised Draft Protocol to the 1979 Convention on  Long-Range Transboundary Air Pollution concerning the  Abatement of Emissions of Nitrogen Oxides": p. 1-18 (2nd  group).},
      url = {http://digitallibrary.un.org/record/242211},
      title = {Report of the 6th session : Economic Commission for  Europe, Executive Body for the Convention on Long-Range  Transboundary Air Pollution, Working Group on Nitrogen  Oxides.},
      publisher = {UN,},
      recid = {242211},
      pages = {4, 18 p. :},
      address = {Geneva :. 1987-09-08},
      year = {1987},
      month = {Sep},
}