Delphi Technique
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The Cost of Not Maintaining Trees: Findings and Recommendations from an International Symposium and Summit
Andrew K. Koeser, Jess Vogt, Richard J. Hauer, Robert J. Northrop and Ward Peterson- Arboriculture & Urban Forestry (AUF) November 2016, 42 (6) 377-388;
- DOI: https://doi.org/10.48044/jauf.2016.032