@InProceedings{schuh:96b,
  author    = {Schuh, W.-D.},
  title     = {Least squares adjustment of high degree spherical harmonics},
  booktitle = {Inverse Methods - Interdisciplinary Elements of Methodology, Computation and Application},
  year      = {1996},
  editor    = {Jacobsen, B.H. et.al.},
  series    = {Lecture Notes in Earth Sciences 63},
  publisher = {Springer},
  pages     = {276--283},
  address   = {Heidelberg}
}