@article{11786,
      author       = "Klokočník, J. and Regber, Ch. and Müller, H. and
                      Kostelecký, Jan",
      title        = "Govariance Propagation for GEM-L2 and GRIM-3MIP to TOPEX
                      and ERS-1 Orbits  ",
      year         = "1989",
      note         = "Obr. a tab. v textu. - Liter., 1 sv.",
}