G. Schorcht, F. Löw, S. Fritsch, and C. Conrad. Proceedings of SPIE Remote Sensing 8538, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIV, 85311G (October 19, 2012); doi:10.1117/12.974670. Edinburgh, UK, (2012)
G. Schreier, S. Dech, E. Diedrich, H. Maass, and E. Mikusch. 63, page 146 - 155. (2008)Touching Humanity - Space for Improving Quality of Life. Selected Proceedings of the 58th International Astronautical Federation Congress, Hyderabad, India, 24-28 September 2007.
S. Dech, P. Tungalagsaikhan, A. Holz, and R. Meisner. P2.33A, Paris, 26.05.1998, 1, page 250--253. American Meteorological Society, 45 Beacon Street, Boston Massachusetts, USA, (1998)LIDO-Berichtsjahr=1999,.