1.

Conference Proceedings
Conference Proceedings
1. Digital Northeast China for about 100 years: RS dynamic observations and GIS frame design and example analysis regarding resources and the environment in Northeast China
Zhang, S. ; Xu, X. ; Li, Y. ; Chang, L. ; Zhang, Y. ; Gao, Z.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.400-409,  2004.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5544
2.

Conference Proceedings
Conference Proceedings
2. Temporal-spatial analysis of dynamic change for grassland in the western part of Songnen Plain of China
Chang, L. ; Zhang, Y. ; Zhang, S. ; Li, Y. ; Gao, Z.
Pub. info.: Remote sensing and modeling of ecosystems for sustainability : 2-4 August 2004, Denver, Colorado, USA.  pp.499-506,  2004.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5544