Jianwen Ma, Zili Liu, Qiqing Li, Xi Chen, Qiting Zuo. The use of Geo-information technology synthetically research on ten years ecosystem changes in middle and lower region of TALIMU watershed. In 2003 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2003, Toulouse, France, July 21-15, 2003. pages 2450-2452, IEEE, 2003. [doi]