A. Batsaikhan, C. Conrad, S. Asam, and D. Klein. Japan Society of Photogrammetry and Remote Sensing (JSPRS) Fall Conference 2017, Yamaguchi, Japan, (9.-10. oct 2017)
M. Machwitz, J. Bloethe, D. Klein, C. Conrad, and S. Dech. Remote Sensing for Agriculture, Ecosystems, and Hydrology XII, 7824, SPIE remote sensing symposium 2010, 20. - 23. September, Toulouse#, (2010)