@article{604,
      author       = "Schüler, Rudi and IUGG - IAG. 15th General Assembly
                      Moscow, 1 - 14 August 1971",
      title        = "Absolute schweremessungen mit Reversionspendeln in Potsdam.
                      1968 - 1969  ",
      year         = "1971",
      note         = "1 sv., obr., příl. Nr. 10",
}