TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 88 LP - 88 DO - 10.48044/joa.1990.16.4.88 VL - 16 IS - 4 A2 - , Y1 - 1990/04/01 UR - http://auf.isa-arbor.com/content/16/4/88.abstract N2 - ER -