@article{94509,
      url = {http://digitallibrary.un.org/record/94509},
      title = {Trade data interchange protocols : enhancement of the  Guidelines for Trade Data Interchange (GTDI) :  recommendation for the development, registration and  maintenance of UN/ECE Standard Electronic Messages /},
      publisher = {UN,},
      recid = {94509},
      pages = {3 p.},
      address = {Geneva :. 1986-07-15},
      year = {1986},
      month = {Jul},
}