1. Bassin, C., Laske, G., and Masters, T.G., 2000, The current limits of resolution for surface wave tomography in North America. Eos, Transactions, AGU, 81, F897.
2. Braitenberg, C., Wienecke, S., and Wang Y., 2006, Basement structures from satellite-derived gravity field: south China Sea ridge. Journal of Geophysical Research, 111, B05407.
3. Cutnell, J.D. and Kenneth, W.J., 1995, Physics, 3rd edition, Wiley, New York.
4. Čadek, O. and Martinec Z., 1991, Spherical harmonic expansion of the earth’s crustal thickness up to degree and order 30. Studia Geophysica et Geodaetica, 35, 151–165.
5. Ekholm, S., 1996, A full coverage, high-resolution, topographic model of Greenland, computed from a variety of digital elevation data. Journal of Geophysical Research, B10, 961–972.