@article {Xiao2006IJRS,
	title = {{Development of topsoil grain size index for monitoring desertification in arid land using remote sensing}},
	journal = {International Journal of Remote Sensing},
	volume = {27},
	number = {12},
	year = {2006},
	pages = {2411-2422},
	author = {Xiao, J. and Shen, Y. and Tateishi, R. and Bayaer, W.}
}