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History
- Published online January 1, 2008.
Copyright & Usage
© 2008, International Society of Arboriculture. All rights reserved.
Author Information
- Glynn C. Percival (corresponding author), Plant Physiologist/Technical Support Specialist, R.A. Bartlett Tree Research Laboratory, The University of Reading, 2 Early Gate, Whiteknights, Reading, RG6 6AU, U.K., gpercival{at}bartlettuk.com
- Ian P. Keary, Research Assistant, School of Biological Sciences, The University of Reading, Whiteknights, Reading, RG6 6AU, U.K.