Beckheinrich, J., Schön, S., Beyerle, G., Apel, H., Semmling, M., Wickert, J. (2013): GNSS-Reflectometry based water level monitoring, (Geophysical Research Abstracts Vol. 15, EGU2013-1279, 2013 ), General Assembly European Geosciences Union (Vienna, Austria 2013).