@article{12673,
      author       = "Monka, Franz M. and Torge, Wolfgang and Webwr, Georg and
                      Wenzel, Hans - Georg",
      title        = "Improved Vertical Deflection and Geoid Determination in the
                      North Sea Region  ",
      year         = "1979",
      note         = "Obr. - Tab. - Grafy - Sch. v textu. - 7 obr. v příl. -
                      Bibliogr. u jedn.statí. - 1 sv.",
}