Pingel, D., Rhodin, A., Werger, W., Tomassini, M., Gorbunov, M., Wickert, J. (2010): Assimilation of CHAMP and GRACE-A Radio Occultation Data in the GME Global Meteorological Model of the German Weather Service. - In: Flechtner, F., Gruber, T., Güntner, A., Mandea, M., Rothacher, M., Schöne, T., Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, (Advanced Technologies in Earth Sciences), Springer, 461-471.