@article{243351,
      url = {http://digitallibrary.un.org/record/243351},
      title = {Problems arising in the exploration of natural gas  deposits located in abnormally high pressure and  temperature conditions and extremely deep geological  formations : replies to the questionnaire /},
      publisher = {UN,},
      recid = {243351},
      pages = {4 p.},
      address = {Geneva :. 1994-04-14},
      year = {1994},
      month = {Apr},
}