TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 280 LP - 280 DO - 10.48044/joa.1989.15.11.280 VL - 15 IS - 11 A2 - , Y1 - 1989/11/01 UR - http://auf.isa-arbor.com/content/15/11/280.abstract N2 - ER -