TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 7 LP - 7 DO - 10.48044/joa.1990.16.1.7 VL - 16 IS - 1 A2 - , Y1 - 1990/01/01 UR - http://auf.isa-arbor.com/content/16/1/7.abstract N2 - ER -