@article{29790,
      author       = "Bruins, G.J. and Symposium on the Figure of the Earth and
                      Refraction, 14 - 17 March 1967, Vienna",
      title        = "Some remarks about parameters used by Hirvonen, Molodenski
                      and Jordan  ",
      year         = "1967",
      note         = "1 seš.",
}