TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 20 LP - 20 DO - 10.48044/joa.1984.10.1.20 VL - 10 IS - 1 A2 - , Y1 - 1984/01/01 UR - http://auf.isa-arbor.com/content/10/1/20.abstract N2 - ER -