TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 214 LP - 214 DO - 10.48044/joa.1988.14.9.214 VL - 14 IS - 9 A2 - , Y1 - 1988/09/01 UR - http://auf.isa-arbor.com/content/14/9/214.abstract ER -