Canadian Forest Service Publications
Tree-crown defoliation measurement from digitized photographs. 1983. Lee, Y.J.; Alfaro, R.I.; van Sickle, G.A. Canadian Journal of Forest Research 13(5): 956-961.
Available from: Pacific Forestry Centre
Catalog ID: 2427
CFS Availability: Order paper copy (free)
Available from the Journal's Web site. †
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