@article{16805,
      author       = "Torge, W. and Basic, T. and Denker, H. and Doliff, J. and
                      Wenzel, H.-G.",
      title        = "Long Range Geoid Control through the European GPS Traverse 
                      ",
      year         = "1989",
      note         = "Obr. a tab. v textu. - Liter., 1 sv.",
}