@article{24463,
      author       = "Niemeier, Wolfgang and FIG and Meeting of FIG Study Group
                      5B Survey Control Networks, 7th-9th July 1982, Aalborg",
      title        = "Principal Component Analysis and Geodetic Networks. Some
                      Basic Considerations  ",
      year         = "1982",
      note         = " Obr. v textu. - Liter., 1 sv.",
}