TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 123 LP - 123 DO - 10.48044/joa.1983.9.5.123 VL - 9 IS - 5 A2 - , Y1 - 1983/05/01 UR - http://auf.isa-arbor.com/content/9/5/123.abstract N2 - ER -