@article{11999,
      author       = "Sansó, F. and Sona, G. and 3th Hotine-Marussi Symp.",
      title        = "Gravity Reductions versus Approximate B.V.P.S.  ",
      year         = "1994",
      note         = "Obr. v textu. - Liter., 1 sv.",
}