T. Reubelt, O. Baur, M. Weigelt, M. Roth, and N. Sneeuw. Gravity, Geoid and Height Systems, volume 141 of International Association of Geodesy Symposia, page 21--26. Springer International Publishing Switzerland, (2014)
T. Reubelt, O. Baur, M. Weigelt, M. Roth, and N. Sneeuw. Gravity, Geoid and Height Systems, volume 141 of International Association of Geodesy Symposia, page 21--26. Springer International Publishing Switzerland, (2014)