@article{102553,
      author       = "Tscherning, C. C. and Radwan, A. and Tealeb, A.A. and
                      Mahmoud, Salah Mohamed and El-Monum, M.A. and Hassan, R. and
                      El-Syaed, I. and Saker, K.",
      title        = "Local geoid determination combining gravity disturbances
                      and GPS/levelling : A case study in the Lake Nasser area,
                      Aswan, Egypt",
}