TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 284 LP - 284 DO - 10.48044/joa.1982.8.11.284 VL - 8 IS - 11 A2 - , Y1 - 1982/11/01 UR - http://auf.isa-arbor.com/content/8/11/284.abstract N2 - ER -