Unknown
In:
EPIC3System Earth via Geodetic-Geophysical Space Techniques / edited by Frank M. Flechtner, Thomas Gruber, Andreas Güntner, Mioara Mandea, Markus Rothacher, Tilo Schöne, Jens Wickert Berlin, Heidelberg : Springer-Verlag Berlin Heidelberg, 169-185. (Advanced Te, ISBN: 978-3-642-10227-1