TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) SP - 330 LP - 330 DO - 10.48044/joa.1990.16.12.330 VL - 16 IS - 12 A2 - , Y1 - 1990/12/01 UR - http://auf.isa-arbor.com/content/16/12/330.abstract N2 - ER -