1. Witness trees of the Monongahela National Forest: 1752-1899
			
			
			- Author(s):
 - Thomas-Van Gundy, Melissa A.; Strager, Michael P.
 
2. Forest canopy disturbance geospatial data for Lake Michigan basin, USA, 1985-2008
			
			
			- Author(s):
 - Housman, Ian W.; Nelson, Mark D.; Perry, Charles H.; Stueve, Kirk M.; Huang, Chengquan
 
3. Forest canopy disturbance geospatial data for Lake Superior basin, USA, 1985-2008
			
			
			- Author(s):
 - Housman, Ian W.; Nelson, Mark D.; Perry, Charles H.; Stueve, Kirk M.; Huang, Chengquan
 
	U.S. Department of Agriculture