@article{27262,
      author       = "Alberda, J.E. and 13. valné shromáždění MUGG Berkeley
                      1963",
      title        = "Report on the adjustment of the United European levelling
                      net and related computations  ",
      year         = "1963",
      note         = "Netherlands geodetic commission. Publication on geodesy,
                      New series, vol. 1., No. 2. - 31.3. 1964 - 1 sv.",
}