@article{31154,
      author       = "Hofmann-Wellenhof, B. and Lichtenegger, H. and Inst. Appl.
                      geod. and photogram. - TU Graz and 19. IUGG - Vancouver,
                      Aug. 9-22, 1987",
      title        = "Strange oscillations of Doppler determinated heights  ",
      year         = "1987",
      note         = "Liter. - Obr. a tab. v textu, příl., 1 sv.",
}