@article{243908,
      url = {http://digitallibrary.un.org/record/243908},
      title = {Maintenance of the gas transportation pipeline systems :  replies to the questionnaire /},
      publisher = {UN,},
      recid = {243908},
      pages = {8 p.},
      address = {Geneva :. 1994-07-29},
      year = {1994},
      month = {Jul},
}