@article{189247,
      url = {http://digitallibrary.un.org/record/189247},
      title = {Information on developments in various railway fields  (AGC) /},
      publisher = {UN,},
      recid = {189247},
      pages = {3 p.},
      address = {Geneva :. 1993-11-12},
      year = {1993},
      month = {Nov},
}