@article {Thompson2001Geoderma,
	title = {{Digital elevation model resolution: effects on terrain attribute calculation and quantitative soil-landscape modeling}},
	journal = {Geoderma},
	volume = {100},
	year = {2001},
	pages = {67-89},
	author = {Thompson, J.~A. and Bell, J.~C. and Butler, C.~A.}
}