@article{23840,
      author       = "Cunningham, E.J. and XIV. Congress F.I.G. 1974 - Washington
                      - Commission 5, Ninth Session, Survey Instruments and
                      Methods",
      title        = "Practical Aspects of an Economical Geodetic Survey  ",
      year         = "1974",
      note         = "1 sv., čet. obr. v textu, více autorů, separáty
                      národních zpráv",
}