RT Journal Article SR Electronic T1 Arboricultural Abstracts JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 133 OP 134 DO 10.48044/joa.2004.30.2.133 VO 30 IS 2 YR 2004 UL http://auf.isa-arbor.com/content/30/2/133.abstract AB