TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 243 LP - 243 DO - 10.48044/joa.1990.16.9.243 VL - 16 IS - 9 A2 - , Y1 - 1990/09/01 UR - http://auf.isa-arbor.com/content/16/9/243.abstract N2 - ER -