TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 19 LP - 19 DO - 10.48044/joa.1980.6.1.19 VL - 6 IS - 1 A2 - , Y1 - 1980/01/01 UR - http://auf.isa-arbor.com/content/6/1/19.abstract ER -