@inproceedings{herold_pathe_schmullius, 
  title={The effect of free vegetation water on the multi-frequency and polarimetric radar backscatter - first results from the TerraDew 2000 campaign}, 
  DOI={10.1109/igarss.2001.978030}, 
  publisher={IEEE}, 
  author={Herold and Pathe and Schmullius}
  }