RT Journal Article SR Electronic T1 Abstracts JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 153 OP 153 DO 10.48044/joa.1982.8.6.153 VO 8 IS 6 YR 1982 UL http://auf.isa-arbor.com/content/8/6/153.abstract AB