@article{243909,
      url = {http://digitallibrary.un.org/record/243909},
      title = {Maintenance of the gas transportation pipeline systems :  reply to the questionnaire /},
      publisher = {UN,},
      recid = {243909},
      pages = {10 p.},
      address = {Geneva :. 1995-07-11},
      year = {1995},
      month = {Jul},
}