TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 304 LP - 304 DO - 10.48044/joa.1988.14.12.304 VL - 14 IS - 12 A2 - , Y1 - 1988/12/01 UR - http://auf.isa-arbor.com/content/14/12/304.abstract N2 - ER -