@article {Holmes2000JH,
	title = {{Error in a USGS 30m digital elevation model and its impact on digital terrain modeling}},
	journal = {Journal of Hydrology},
	volume = {233},
	year = {2000},
	pages = {154-173},
	author = {Holmes, K.~W. and Chadwick, O.~A. and Kyriakidis, Ph.~C.}
}