@article {Li2004SSSAJ,
	title = {Two-dimensional Markov Chain Simulation of Soil Type Spatial Distribution},
	journal = {Soil Science Society of America Journal},
	volume = {68},
	year = {2004},
	pages = {1479-1490},
	author = {Li, W. and Zhang, C. and Burt, J.E. and Zhu, A.X. and Feyen, J.}
}