@article {Kellndorfer2004RSE,
	title = {{Vegetation height estimation from Shuttle Radar Topography Mission and National Elevation Datasets}},
	journal = {Remote Sensing of Environment},
	volume = {93},
	number = {3},
	year = {2004},
	pages = {339-358},
	author = {Kellndorfer, J. and Walker, W. and Pierce, L. and Dobson, C. and Fites, J.~A. and Hunsaker, C. and Vona, J. and Clutter, M.}
}