@article{4557,
      author       = "Betti, B. and Sansö, F. and ITFG Politecnico di Milano and
                      1st Hotine-Marussi Symposium on Mathematical Geodesy, Řím,
                      1985",
      title        = "The Continuous Analog of the Sphere Reconstruction in
                      Hipparcos Project  ",
      year         = "1985",
      note         = "8 obr. v textu., 1 sv.",
}