@unpublished{TUW-181556, author = {Sabel, Daniel}, title = {Soil Moisture Monitoring with C-band SAR: Learning from Operational Scatterometer Services}, year = {2009}, note = {invited; talk: International GEO Workshop on Synthetic Aperture Radar (SAR) to Support Agricultural Monitoring, Kananaskis, Canada; 2009-11-02 -- 2009-11-04} }