@article{30936,
      author       = "Blachnitzky, Klaus and FIG and Meeting of FIG Study Group
                      5B Survey Control Networks, 7th-9th July 1982, Aalborg",
      title        = "Status and Problems of Official Horizontal Densification
                      Networks as Shown by the Federal Republic of Germany  ",
      year         = "1982",
      note         = "Obr. příl. - Liter., 1 sv.",
}