Yang, B., Wang, Q., Wang, C., Wan, H., Yang, Y., Cha, Y., Le, C., Liu, X. and Li,
J. (2010). “Drought monitoring in North China using HJ-1 satellite remote sensing
data.” Sixth International Symposium on Digital Earth: Data Processing and Applications,
SPIE, Vol. 7841, Washington.>Yang, B., Wang, Q., Wang, C., Wan, H., Yang, Y., Cha,
Y., Le, C., Liu, X. and Li, J. (2010). “Drought monitoring in North China using HJ-1
satellite remote sensing data.” Sixth International Symposium on Digital Earth: Data
Processing and Applications, SPIE, Vol. 7841, Washington.
