@article{26109,
      author       = "Zhu Zhuowen and Yu Jinghai and 20th General Assembly of the
                      IUGG, 11 - 24 August 1991, Vienna",
      title        = "Pseudo-Solution on Geodetic Overdetermined Boundary Value
                      Problems  ",
      year         = "1991",
      note         = "Liter.",
}