RT Journal Article
SR Electronic
T1 Abstracts
JF Arboriculture & Urban Forestry
JO JOA
FD International Society of Arboriculture
SP 21
OP 21
DO 10.48044/joa.1989.15.1.21a
VO 15
IS 1
YR 1989
UL http://auf.isa-arbor.com/content/15/1/21.2.abstract