Balidakis, K., Semmling, M., Zus, F., Asgarimehr, M., Michalak, G., Beyerle, G., Wickert, J., Schuh, H. (2019): Kepler observing Earth - A reflectometry concept for ocean altimetry - Papers, IEEE GNSS+R 2019 Specialist Meeting on Reflectometry using GNSS and other Signals of Opportunity (Benevento, Italy 2019).