@article{256670,
      url = {http://digitallibrary.un.org/record/256670},
      title = {Diagnostics of gas transmission lines : draft  questionnaire /},
      publisher = {UN,},
      recid = {256670},
      pages = {6 p.},
      address = {Geneva :. 1998-07-02},
      year = {1998},
      month = {Jul},
}