Status of GNSS reflectometry related receiver developments and feasibility studies within the German Indonesian Tsunami Early Warning System. - Achim Helm; Ralf Stosius; Georg Beyerle; Oliver Montenbruck; Markus Rothacher (IGARSS, 2007)

Tsunami detection from space using GNSS Reflections: Results and activities from GFZ. - Ralf Stosius; Georg Beyerle; Maximilian Semmling; Achim Helm; Andreas Hoechner; Jens Wickert; Jörn Lauterjung (IGARSS, 2010)