Liu, J., Liu M., Deng X., Zhuang D., Zhang Z., and Luo D. 2002. The Land-use and land-cover change database and its relative studies in China. Journal of Geographical Sciences 12(3): 275-282.
Liu, J., Zhuang D., Luo D., and Xiao, X. 2003. Land-cover Classification of China: Integrated Analysis of AVHRR Imagery and Geo-physical Data. International Journal of Remote Sensing 24(12): 2485-2500.
Liu, J., Liu M., Zhuang D., Zhang Z., and Deng X. 2003. Study on spatial pattern of land-use change in China during 1995-2000. Science in China (D) 46(4): 373-384.