@article{2357,
      author       = "Beutler, G. and Bauersima, I. and University Berne and
                      19.IUGG - Vancouver, Aug. 9-22, 1987",
      title        = "Atmospheric refraction and other important biases in GPS
                      carrier phase observations  ",
      year         = "1987",
      note         = "2 tab., 9 obr. v textu. - Liter., 1 sv., více autorů",
}