@article{11531,
      author       = "Burša, Milan and Kumar, Muneendra and Müller, Achim and
                      True, Scott A. and Vart, Viliam and Vojtíšková, Marie and
                      6th Common seminar PfP (NATO), Sofia, September 20 - 21,
                      1999",
      title        = "Geopotential model evaluation and monitoring network and
                      connecting origins of local vertical datums : Resented at
                      the 6th Common seminar PfP (NATO) : Sofia, September 20 -
                      21, 1999  ",
      year         = "1999",
      note         = "Dobruška : VTOPÚ, 1999., Lit. 20., Zkr., 1 sv.",
}