@article {50251,
	title = {Spatial patterns of soil nutrients in two southern African savannas},
	journal = {Journal of Geophysical Research - Biogeosciences},
	volume = {113},
	year = {2008},
	pages = {G02011},
	doi = {10.1029/2007JG000584},
	author = {Gregory S. Okin and Mladenov, N. and L. Wang and Cassel, D. and Caylor, K. K. and Ringrose, S. and Stephen A. Macko}
}
