@article{5537,
      author       = "Gardiner-Hill, R.C. and International Cartographic
                      Association. Commission III - Automation in Cartography.
                      Working Session and Business Meeting 21-26 August, 1973
                      Budapest, Hungary",
      title        = "Data Structure for Digital Mapping Used by the Ordnance
                      Survey  ",
      year         = "1973",
      note         = "1 obr. na příl.,1 sv., separáty",
}