@article{136884,
      note = {"Round Table 88 : Structural Changes in Population and  Impacts on Passenger Transport Demand": p. 2-9.},
      url = {http://digitallibrary.un.org/record/136884},
      title = {Studies on transport economics and track costs undertaken  by other organizations /},
      publisher = {UN,},
      recid = {136884},
      pages = {18 p.},
      address = {Geneva :. 1991-11-22},
      year = {1991},
      month = {Nov},
}