RT Journal Article SR Electronic T1 Arboricultural Abstracts JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 159 OP 160 DO 10.48044/joa.2002.28.3.159 VO 28 IS 3 YR 2002 UL http://auf.isa-arbor.com/content/28/3/159.abstract AB