@article{34072,
      author       = "Kukkamäki, T. J. and Hytönen, Erkki and XII Assemblée
                      Génerale de l'UGGI a Helsinki, 1960",
      title        = "Two hundret - meter pendulum. Presented at the XII General
                      Assembly of the IUGG 1960 in Helsinki by  ",
      year         = "1960",
      note         = "1 sv.",
}