@article {Oksanen2006IJGIS,
	title = {{Uncovering the statistical and spatial characteristics of fine toposcale {DEM} error}},
	journal = {International Journal of Geographical Information Science},
	volume = {20},
	number = {4},
	year = {2006},
	pages = {345-369},
	author = {Oksanen, J.}
}