@article {55, editor = {,}, title = {Abstract}, volume = {13}, number = {2}, pages = {55--55}, year = {1987}, doi = {10.48044/joa.1987.13.2.55}, publisher = {Arboriculture \& Urban Forestry (AUF)}, issn = {1935-5297}, URL = {https://auf.isa-arbor.com/content/13/2/55}, eprint = {https://auf.isa-arbor.com/content/13/2/55.full.pdf}, journal = {Arboriculture \& Urban Forestry (AUF)} }