TY - BOOK AU - Guo, Huadong, ed. TI - Sixth International Symposium on Digital Earth: Data Processing and Applications T2 - Proceedings of SPIE; V. 7841 SN - 9780819483645 (Print) PY - 2010/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7841 ER -