RT Journal Article SR Electronic T1 Abstracts JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 111 OP 111 DO 10.48044/joa.1985.11.4.111 VO 11 IS 4 YR 1985 UL http://auf.isa-arbor.com/content/11/4/111.abstract AB