@article{31371,
      author       = "Kling, Th. and Becker, M. and Euler, H.-J. and Groten, E.",
      title        = "Studien zur detaillierten Geoidberechnung  ",
      year         = "1987",
      note         = "Obr. a tab. v textu. - Liter., 1 sv.",
}