@article {Odeh1995Geoderma,
	title = {{Further results on prediction of soil properties from terrain attributes: heterotopic cokriging and regression-kriging}},
	journal = {Geoderma},
	volume = {67},
	number = {3-4},
	year = {1995},
	pages = {215-226},
	author = {Odeh, I.~O.~A. and McBratney, A.~B. and Chittleborough, D.~J.}
}